/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 produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:07:32,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:07:32,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:07:32,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:07:32,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:07:32,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:07:32,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:07:32,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:07:32,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:07:32,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:07:32,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:07:32,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:07:32,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:07:32,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:07:32,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:07:32,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:07:32,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:07:32,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:07:32,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:07:32,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:07:32,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:07:32,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:07:32,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:07:32,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:07:32,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:07:32,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:07:32,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:07:32,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:07:32,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:07:32,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:07:32,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:07:32,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:07:32,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:07:32,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:07:32,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:07:32,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:07:32,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:07:32,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:07:32,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:07:32,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:07:32,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:07:32,807 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 [2020-09-21 11:07:32,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:07:32,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:07:32,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:07:32,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:07:32,858 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:07:32,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:07:32,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:07:32,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:07:32,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:07:32,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:07:32,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:07:32,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:07:32,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:07:32,861 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:07:32,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:07:32,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:07:32,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:07:32,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:07:32,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:07:32,862 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:07:32,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:07:32,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:07:32,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:07:32,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:07:32,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:07:32,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:07:32,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:07:32,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:07:32,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:07:32,864 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 -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:07:33,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:07:33,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:07:33,331 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:07:33,333 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:07:33,333 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:07:33,334 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-21 11:07:33,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9cf7bf25b/a11d8adc61394bc9a1e26696bd18ce3c/FLAGb7cda5d55 [2020-09-21 11:07:33,933 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:07:33,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-21 11:07:33,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9cf7bf25b/a11d8adc61394bc9a1e26696bd18ce3c/FLAGb7cda5d55 [2020-09-21 11:07:34,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9cf7bf25b/a11d8adc61394bc9a1e26696bd18ce3c [2020-09-21 11:07:34,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:07:34,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:07:34,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:07:34,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:07:34,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:07:34,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:07:34" (1/1) ... [2020-09-21 11:07:34,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:34, skipping insertion in model container [2020-09-21 11:07:34,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:07:34" (1/1) ... [2020-09-21 11:07:34,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:07:34,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:07:34,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:07:34,664 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:07:34,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:07:34,900 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:07:34,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:34 WrapperNode [2020-09-21 11:07:34,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:07:34,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:07:34,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:07:34,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:07:34,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:34" (1/1) ... [2020-09-21 11:07:34,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:34" (1/1) ... [2020-09-21 11:07:34,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:34" (1/1) ... [2020-09-21 11:07:34,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:34" (1/1) ... [2020-09-21 11:07:34,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:34" (1/1) ... [2020-09-21 11:07:35,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:34" (1/1) ... [2020-09-21 11:07:35,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:34" (1/1) ... [2020-09-21 11:07:35,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:07:35,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:07:35,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:07:35,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:07:35,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:34" (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 [2020-09-21 11:07:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:07:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:07:35,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:07:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:07:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:07:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:07:35,100 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:07:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:07:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:07:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:07:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:07:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:07:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:07:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:07:35,103 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:07:35,104 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:07:35,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:07:35,104 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:07:35,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:07:35,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:07:35,105 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:07:35,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:07:35,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:07:35,105 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:07:35,105 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:07:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:07:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:07:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:07:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:07:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:07:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:07:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:07:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:07:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:07:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:07:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:07:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-21 11:07:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-21 11:07:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:07:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:07:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:07:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:07:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:07:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:07:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:07:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:07:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:07:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:07:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:07:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:07:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:07:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:07:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:07:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:07:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:07:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:07:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:07:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:07:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-21 11:07:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:07:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:07:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:07:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:07:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:07:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:07:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:07:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-21 11:07:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:07:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:07:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:07:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:07:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:07:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:07:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:07:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:07:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:07:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:07:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:07:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:07:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:07:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:07:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:07:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:07:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:07:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:07:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:07:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:07:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:07:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:07:35,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:07:36,057 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:07:36,058 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:07:36,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:07:36 BoogieIcfgContainer [2020-09-21 11:07:36,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:07:36,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:07:36,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:07:36,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:07:36,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:07:34" (1/3) ... [2020-09-21 11:07:36,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f988b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:07:36, skipping insertion in model container [2020-09-21 11:07:36,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:07:34" (2/3) ... [2020-09-21 11:07:36,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f988b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:07:36, skipping insertion in model container [2020-09-21 11:07:36,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:07:36" (3/3) ... [2020-09-21 11:07:36,073 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-09-21 11:07:36,084 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:07:36,094 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:07:36,116 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:07:36,146 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:07:36,146 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:07:36,146 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:07:36,146 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:07:36,146 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:07:36,146 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:07:36,147 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:07:36,147 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:07:36,170 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-09-21 11:07:36,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:07:36,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:36,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:07:36,183 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:36,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:36,189 INFO L82 PathProgramCache]: Analyzing trace with hash -884456721, now seen corresponding path program 1 times [2020-09-21 11:07:36,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:36,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580500546] [2020-09-21 11:07:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:36,529 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:36,530 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:36,530 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:36,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:36,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:07:36,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:36,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:07:36,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:36,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:36,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 11:07:36,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:36,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:36,958 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:36,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:36,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:36,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:36,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:36,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:36,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:36,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:36,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:36,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:36,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:36,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:37,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:37,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:37,039 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:37,039 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:37,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:37,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:37,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:37,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:37,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:37,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:37,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:37,048 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:37,049 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:37,049 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:37,049 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:37,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:37,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:37,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:37,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:37,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:37,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:37,056 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:37,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:37,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:37,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:37,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:37,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:37,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:37,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:37,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:37,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:37,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:37,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:37,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:37,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:37,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:37,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:37,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:37,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:37,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:37,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:37,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:37,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:37,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:37,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:37,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:37,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:37,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:37,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:37,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:37,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:37,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:37,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:37,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:37,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:07:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:37,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:37,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:37,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:37,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:37,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:37,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:37,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:37,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:37,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:37,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:37,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:37,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:37,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 11:07:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:37,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:37,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:37,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:37,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:37,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:37,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:37,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:37,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:37,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:37,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:37,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580500546] [2020-09-21 11:07:37,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:37,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:07:37,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423438575] [2020-09-21 11:07:37,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:07:37,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:37,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:07:37,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:07:37,151 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 4 states. [2020-09-21 11:07:38,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:38,062 INFO L93 Difference]: Finished difference Result 248 states and 328 transitions. [2020-09-21 11:07:38,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 11:07:38,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:07:38,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:38,082 INFO L225 Difference]: With dead ends: 248 [2020-09-21 11:07:38,082 INFO L226 Difference]: Without dead ends: 139 [2020-09-21 11:07:38,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:07:38,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-09-21 11:07:38,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 110. [2020-09-21 11:07:38,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-21 11:07:38,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2020-09-21 11:07:38,183 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 51 [2020-09-21 11:07:38,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:38,187 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2020-09-21 11:07:38,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:07:38,187 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2020-09-21 11:07:38,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:07:38,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:38,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:07:38,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:07:38,191 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:38,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:38,192 INFO L82 PathProgramCache]: Analyzing trace with hash -101366549, now seen corresponding path program 1 times [2020-09-21 11:07:38,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:38,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145367021] [2020-09-21 11:07:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:38,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:38,258 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:38,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:38,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:38,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:07:38,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:38,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:07:38,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 11:07:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:07:38,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:38,576 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:38,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:38,585 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:38,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:38,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:38,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:38,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:38,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:38,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:38,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:38,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:38,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:38,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:38,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:38,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:38,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:38,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:38,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:38,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:38,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:38,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:38,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:38,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:38,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:38,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:38,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:38,627 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:38,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:38,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:38,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:38,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:38,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:38,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:38,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:38,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:38,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:38,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:38,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:38,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:38,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:38,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:38,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:38,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:38,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:38,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:38,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:38,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:38,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:38,637 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:38,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:38,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:38,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:38,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:38,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:38,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:38,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:38,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:38,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:38,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:38,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:38,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:38,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:38,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:38,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:38,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:38,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:38,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:38,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:38,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:38,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:07:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:38,657 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:38,657 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:38,657 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:38,657 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:38,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:38,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:38,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:38,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:38,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:38,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:38,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:38,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:38,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:07:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:38,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:38,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:38,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:38,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:38,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:38,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:38,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:38,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:38,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:38,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:38,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145367021] [2020-09-21 11:07:38,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:38,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:07:38,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611750261] [2020-09-21 11:07:38,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:07:38,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:38,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:07:38,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:07:38,676 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand 5 states. [2020-09-21 11:07:39,128 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:07:39,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:39,852 INFO L93 Difference]: Finished difference Result 193 states and 239 transitions. [2020-09-21 11:07:39,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:07:39,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-09-21 11:07:39,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:39,855 INFO L225 Difference]: With dead ends: 193 [2020-09-21 11:07:39,855 INFO L226 Difference]: Without dead ends: 129 [2020-09-21 11:07:39,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:07:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-09-21 11:07:39,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 101. [2020-09-21 11:07:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-21 11:07:39,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2020-09-21 11:07:39,890 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 52 [2020-09-21 11:07:39,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:39,891 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2020-09-21 11:07:39,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:07:39,891 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2020-09-21 11:07:39,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-21 11:07:39,893 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:39,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:07:39,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:07:39,894 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:39,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:39,894 INFO L82 PathProgramCache]: Analyzing trace with hash -388267202, now seen corresponding path program 1 times [2020-09-21 11:07:39,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:39,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930066881] [2020-09-21 11:07:39,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:07:40,011 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,011 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,012 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-21 11:07:40,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 11:07:40,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:40,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:40,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-21 11:07:40,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:40,424 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:40,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,489 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,489 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:40,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:07:40,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:40,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:07:40,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:40,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:40,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:40,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:40,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:40,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:40,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:40,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:40,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:40,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,540 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:40,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:40,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:40,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:40,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:40,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:40,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:40,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:40,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:40,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,561 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,561 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:40,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:40,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:40,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:40,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:40,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:40,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:07:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:40,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:40,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:40,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:40,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:07:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:40,571 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:40,571 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:40,571 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:40,572 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:40,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:40,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:40,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:40,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:40,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:40,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:40,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:40,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:40,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:40,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930066881] [2020-09-21 11:07:40,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:40,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:07:40,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555809061] [2020-09-21 11:07:40,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:07:40,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:40,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:07:40,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:07:40,584 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 5 states. [2020-09-21 11:07:40,871 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:07:41,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:41,619 INFO L93 Difference]: Finished difference Result 202 states and 254 transitions. [2020-09-21 11:07:41,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:07:41,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-09-21 11:07:41,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:41,624 INFO L225 Difference]: With dead ends: 202 [2020-09-21 11:07:41,624 INFO L226 Difference]: Without dead ends: 129 [2020-09-21 11:07:41,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:07:41,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-09-21 11:07:41,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 101. [2020-09-21 11:07:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-21 11:07:41,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-09-21 11:07:41,654 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 56 [2020-09-21 11:07:41,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:41,654 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-09-21 11:07:41,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:07:41,655 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-09-21 11:07:41,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-21 11:07:41,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:41,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:07:41,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:07:41,657 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:41,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:41,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1251165603, now seen corresponding path program 1 times [2020-09-21 11:07:41,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:41,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487690618] [2020-09-21 11:07:41,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 11:07:42,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-09-21 11:07:42,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:07:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:07:42,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,379 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:42,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,446 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,446 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,446 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:42,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:07:42,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:07:42,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,485 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:42,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:42,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,490 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,490 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:42,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:42,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:42,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:42,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:42,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:42,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:42,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:42,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:42,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:42,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:07:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,542 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,542 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,543 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:07:42,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:42,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:42,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:07:42,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:07:42,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:42,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:07:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:42,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:42,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:07:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,564 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:42,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:42,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:42,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:42,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:42,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:07:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:42,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:42,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:42,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:42,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:42,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:42,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:42,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:42,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:42,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:42,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:42,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487690618] [2020-09-21 11:07:42,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:42,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:07:42,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55475305] [2020-09-21 11:07:42,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:07:42,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:42,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:07:42,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:07:42,583 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 7 states. [2020-09-21 11:07:42,990 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:07:44,279 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:07:44,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:44,783 INFO L93 Difference]: Finished difference Result 287 states and 364 transitions. [2020-09-21 11:07:44,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:07:44,783 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-21 11:07:44,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:44,787 INFO L225 Difference]: With dead ends: 287 [2020-09-21 11:07:44,787 INFO L226 Difference]: Without dead ends: 214 [2020-09-21 11:07:44,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:07:44,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-09-21 11:07:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 168. [2020-09-21 11:07:44,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-09-21 11:07:44,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 195 transitions. [2020-09-21 11:07:44,828 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 195 transitions. Word has length 64 [2020-09-21 11:07:44,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:44,828 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 195 transitions. [2020-09-21 11:07:44,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:07:44,829 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 195 transitions. [2020-09-21 11:07:44,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:07:44,830 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:44,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:07:44,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:07:44,831 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:44,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:44,831 INFO L82 PathProgramCache]: Analyzing trace with hash 155242328, now seen corresponding path program 1 times [2020-09-21 11:07:44,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:44,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351451110] [2020-09-21 11:07:44,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,158 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,158 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,158 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,158 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:07:45,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-21 11:07:45,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:07:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 11:07:45,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:45,608 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:45,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,678 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,678 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:45,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:07:45,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:45,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:07:45,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,724 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,724 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:45,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:45,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:45,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:45,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:45,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:45,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:45,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:45,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:45,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:45,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:45,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:45,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:45,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:45,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:45,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:45,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:45,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:45,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:45,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:45,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:45,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:45,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:07:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,793 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:07:45,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:45,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:45,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:07:45,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:07:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:07:45,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:45,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:45,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:45,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:45,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:07:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,812 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:07:45,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:45,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:45,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:45,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:45,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:07:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,819 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,819 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,820 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:45,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:45,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:45,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:45,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:45,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 11:07:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:45,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:07:45,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:45,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:07:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:45,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:45,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:45,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:45,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:45,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:45,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:45,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:45,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:45,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:45,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:45,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351451110] [2020-09-21 11:07:45,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:45,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:07:45,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495145033] [2020-09-21 11:07:45,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:07:45,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:45,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:07:45,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:07:45,886 INFO L87 Difference]: Start difference. First operand 168 states and 195 transitions. Second operand 9 states. [2020-09-21 11:07:46,480 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:07:47,769 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:07:48,105 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:07:48,400 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:07:48,666 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:07:49,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:49,605 INFO L93 Difference]: Finished difference Result 495 states and 636 transitions. [2020-09-21 11:07:49,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:07:49,606 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-09-21 11:07:49,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:49,611 INFO L225 Difference]: With dead ends: 495 [2020-09-21 11:07:49,611 INFO L226 Difference]: Without dead ends: 355 [2020-09-21 11:07:49,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-09-21 11:07:49,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-09-21 11:07:49,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 284. [2020-09-21 11:07:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-21 11:07:49,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 330 transitions. [2020-09-21 11:07:49,690 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 330 transitions. Word has length 78 [2020-09-21 11:07:49,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:49,690 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 330 transitions. [2020-09-21 11:07:49,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:07:49,691 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 330 transitions. [2020-09-21 11:07:49,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 11:07:49,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:49,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:07:49,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:07:49,693 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:49,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:49,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1734675892, now seen corresponding path program 1 times [2020-09-21 11:07:49,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:49,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885909645] [2020-09-21 11:07:49,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,184 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-21 11:07:50,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-09-21 11:07:50,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:07:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:50,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-21 11:07:50,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,634 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:50,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,716 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,717 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,717 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:50,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 11:07:50,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:07:50,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,771 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:50,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:07:50,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:50,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,777 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,778 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:50,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:50,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,785 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,785 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,785 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,786 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:50,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:50,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:50,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:50,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:07:50,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:50,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,817 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,820 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,820 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,821 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:50,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:07:50,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:50,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:07:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,843 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,843 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,843 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:50,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:50,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:50,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:07:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,874 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,875 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:07:50,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:07:50,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:50,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:07:50,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:07:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,896 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,896 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:07:50,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:50,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:07:50,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:07:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,906 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,906 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:07:50,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:50,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:50,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:50,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:07:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,915 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:50,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:50,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:50,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:07:50,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-21 11:07:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,926 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,926 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,926 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:50,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:07:50,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:07:50,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:50,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-21 11:07:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:50,939 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:50,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:50,940 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:50,940 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:50,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:50,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:50,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:07:50,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:50,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:50,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:50,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:50,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:50,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885909645] [2020-09-21 11:07:50,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:50,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:07:50,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160159107] [2020-09-21 11:07:50,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:07:50,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:50,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:07:50,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:07:50,989 INFO L87 Difference]: Start difference. First operand 284 states and 330 transitions. Second operand 10 states. [2020-09-21 11:07:51,443 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:07:52,620 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 11:07:52,909 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:07:53,215 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:07:53,594 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:07:54,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:54,631 INFO L93 Difference]: Finished difference Result 646 states and 813 transitions. [2020-09-21 11:07:54,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:07:54,632 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-09-21 11:07:54,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:54,636 INFO L225 Difference]: With dead ends: 646 [2020-09-21 11:07:54,637 INFO L226 Difference]: Without dead ends: 390 [2020-09-21 11:07:54,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:07:54,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-09-21 11:07:54,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 283. [2020-09-21 11:07:54,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-21 11:07:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 327 transitions. [2020-09-21 11:07:54,707 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 327 transitions. Word has length 82 [2020-09-21 11:07:54,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:54,707 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 327 transitions. [2020-09-21 11:07:54,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:07:54,707 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 327 transitions. [2020-09-21 11:07:54,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:07:54,709 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:54,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:07:54,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:07:54,710 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:54,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:54,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1892436078, now seen corresponding path program 1 times [2020-09-21 11:07:54,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:54,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294071148] [2020-09-21 11:07:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:54,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:54,758 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:54,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:54,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:54,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:07:54,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:54,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:07:54,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:07:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-21 11:07:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:07:54,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,027 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:55,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:55,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:55,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:55,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:55,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:55,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,062 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,062 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,062 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,062 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:55,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:55,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:55,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,066 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:55,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:55,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:55,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:55,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:55,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,070 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,070 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,070 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:55,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:55,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:55,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:55,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,075 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,075 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,075 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:55,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:55,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:55,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:55,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:55,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:55,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:55,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:55,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:07:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,096 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,097 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,097 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:55,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:55,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:55,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:07:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,117 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,117 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,117 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,117 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:07:55,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:07:55,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:07:55,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:07:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:07:55,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:07:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:07:55,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:07:55,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:55,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:55,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:07:55,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:07:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,212 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:07:55,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:55,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:55,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:07:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,218 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:55,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:55,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:55,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:55,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:07:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:55,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:55,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:55,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:55,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:55,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:07:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:55,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:55,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:55,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:55,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:55,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:55,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:55,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:55,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:55,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:55,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:55,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:55,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:55,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:55,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294071148] [2020-09-21 11:07:55,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:55,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:07:55,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59083729] [2020-09-21 11:07:55,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:07:55,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:55,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:07:55,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:07:55,242 INFO L87 Difference]: Start difference. First operand 283 states and 327 transitions. Second operand 10 states. [2020-09-21 11:07:56,394 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:07:56,703 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-21 11:07:57,019 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:07:57,324 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 11:07:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:07:58,312 INFO L93 Difference]: Finished difference Result 649 states and 823 transitions. [2020-09-21 11:07:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:07:58,312 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-09-21 11:07:58,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:07:58,316 INFO L225 Difference]: With dead ends: 649 [2020-09-21 11:07:58,316 INFO L226 Difference]: Without dead ends: 394 [2020-09-21 11:07:58,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:07:58,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-21 11:07:58,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 293. [2020-09-21 11:07:58,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-09-21 11:07:58,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 337 transitions. [2020-09-21 11:07:58,376 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 337 transitions. Word has length 83 [2020-09-21 11:07:58,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:07:58,376 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 337 transitions. [2020-09-21 11:07:58,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:07:58,377 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 337 transitions. [2020-09-21 11:07:58,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:07:58,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:07:58,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:07:58,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:07:58,379 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:07:58,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:07:58,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1016327824, now seen corresponding path program 1 times [2020-09-21 11:07:58,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:07:58,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287097339] [2020-09-21 11:07:58,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:07:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:07:58,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -55 [2020-09-21 11:07:58,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 55 [2020-09-21 11:07:58,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:07:58,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:07:58,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:58,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:07:58,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:58,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,702 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:07:58,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:07:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,710 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,711 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:58,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:07:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,752 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:58,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:07:58,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:58,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:07:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,758 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,758 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,758 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:58,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:58,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:58,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:58,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:07:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,763 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,763 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:58,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:58,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:07:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:07:58,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:58,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:58,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:07:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:07:58,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:58,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:58,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:07:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,801 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,801 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,801 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,802 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:58,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:58,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:58,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:07:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,829 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:07:58,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:07:58,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:58,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:07:58,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:58,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:58,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:07:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,845 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,845 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,845 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:07:58,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:07:58,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:07:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:07:58,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:58,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:07:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,879 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:07:58,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:07:58,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:07:58,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:07:58,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:07:58,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:58,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:07:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,902 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:58,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:58,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:58,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:07:58,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:07:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:58,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:07:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:07:58,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:07:58,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:07:58,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:07:58,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:07:58,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:07:58,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:07:58,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:07:58,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:07:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:07:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:07:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:07:58,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:07:58,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:07:58,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287097339] [2020-09-21 11:07:58,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:07:58,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:07:58,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144639060] [2020-09-21 11:07:58,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:07:58,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:07:58,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:07:58,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:07:58,936 INFO L87 Difference]: Start difference. First operand 293 states and 337 transitions. Second operand 9 states. [2020-09-21 11:07:59,792 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:00,104 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:00,435 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:01,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:01,404 INFO L93 Difference]: Finished difference Result 673 states and 863 transitions. [2020-09-21 11:08:01,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:08:01,409 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 11:08:01,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:01,412 INFO L225 Difference]: With dead ends: 673 [2020-09-21 11:08:01,412 INFO L226 Difference]: Without dead ends: 408 [2020-09-21 11:08:01,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:08:01,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-09-21 11:08:01,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 301. [2020-09-21 11:08:01,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-21 11:08:01,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 345 transitions. [2020-09-21 11:08:01,474 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 345 transitions. Word has length 83 [2020-09-21 11:08:01,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:01,475 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 345 transitions. [2020-09-21 11:08:01,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:08:01,475 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 345 transitions. [2020-09-21 11:08:01,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:08:01,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:01,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:01,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:08:01,477 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:01,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:01,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1094962545, now seen corresponding path program 1 times [2020-09-21 11:08:01,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:01,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430434268] [2020-09-21 11:08:01,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:01,720 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:01,720 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:01,720 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:01,721 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:01,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:08:01,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:01,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-21 11:08:01,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:01,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:08:01,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:01,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:08:01,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:01,992 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:01,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,054 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,054 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,054 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:02,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:08:02,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:02,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:02,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:08:02,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,087 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:02,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:02,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:02,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,093 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:02,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:02,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:02,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:02,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:02,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,097 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,097 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,097 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,098 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:02,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:02,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:02,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,103 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,103 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,103 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,103 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:02,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:02,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:02,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:02,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:08:02,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:02,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:02,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:02,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:08:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,129 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,129 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,129 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,129 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:02,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:02,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:02,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:02,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:02,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:08:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,145 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,146 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,146 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,146 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:08:02,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:02,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:08:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 11:08:02,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,167 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,167 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,167 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:02,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:02,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:02,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:02,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:08:02,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,186 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:02,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:02,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:02,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:02,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:08:02,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,204 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:02,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:02,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:02,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:02,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:08:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,211 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,211 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,211 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,211 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:02,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:02,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:02,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:08:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:02,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:02,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:02,216 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:02,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:02,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:02,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:02,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:02,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:02,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:02,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:08:02,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:02,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:02,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:02,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430434268] [2020-09-21 11:08:02,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:02,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:08:02,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505114520] [2020-09-21 11:08:02,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:08:02,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:02,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:08:02,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:08:02,231 INFO L87 Difference]: Start difference. First operand 301 states and 345 transitions. Second operand 8 states. [2020-09-21 11:08:02,584 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:03,227 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:08:05,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:05,249 INFO L93 Difference]: Finished difference Result 972 states and 1282 transitions. [2020-09-21 11:08:05,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 11:08:05,250 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-09-21 11:08:05,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:05,254 INFO L225 Difference]: With dead ends: 972 [2020-09-21 11:08:05,255 INFO L226 Difference]: Without dead ends: 699 [2020-09-21 11:08:05,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:08:05,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-09-21 11:08:05,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 567. [2020-09-21 11:08:05,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-09-21 11:08:05,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 673 transitions. [2020-09-21 11:08:05,345 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 673 transitions. Word has length 83 [2020-09-21 11:08:05,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:05,346 INFO L479 AbstractCegarLoop]: Abstraction has 567 states and 673 transitions. [2020-09-21 11:08:05,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:08:05,346 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 673 transitions. [2020-09-21 11:08:05,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-21 11:08:05,348 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:05,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:05,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:08:05,348 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:05,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1057623401, now seen corresponding path program 1 times [2020-09-21 11:08:05,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:05,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094779772] [2020-09-21 11:08:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:08:05,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:08:05,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:08:05,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:08:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-21 11:08:05,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,696 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:08:05,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:08:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,703 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:05,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:05,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:05,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:05,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:08:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,729 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:05,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:05,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:05,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:08:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:05,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:05,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:05,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:05,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:08:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:05,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:05,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:05,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:08:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,741 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:08:05,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:08:05,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:05,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:08:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,753 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:05,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:05,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:08:05,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:08:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,769 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:05,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:05,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:05,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:05,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:08:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,785 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:05,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:05,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:05,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:05,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:08:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,803 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:08:05,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:05,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 11:08:05,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:08:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,811 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,811 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:08:05,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:05,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:05,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:05,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:08:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:08:05,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:05,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:05,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:08:05,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:08:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:05,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:05,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:08:05,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:08:05,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 11:08:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:05,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:08:05,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:05,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:08:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:08:05,835 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:08:05,835 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:08:05,835 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:08:05,835 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:08:05,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:08:05,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:08:05,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:08:05,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:08:05,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:08:05,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:08:05,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:08:05,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:08:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:08:05,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094779772] [2020-09-21 11:08:05,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:08:05,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:08:05,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573306600] [2020-09-21 11:08:05,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:08:05,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:08:05,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:08:05,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:08:05,853 INFO L87 Difference]: Start difference. First operand 567 states and 673 transitions. Second operand 8 states. [2020-09-21 11:08:06,557 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:08:08,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:08:08,529 INFO L93 Difference]: Finished difference Result 1114 states and 1455 transitions. [2020-09-21 11:08:08,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 11:08:08,530 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2020-09-21 11:08:08,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:08:08,536 INFO L225 Difference]: With dead ends: 1114 [2020-09-21 11:08:08,537 INFO L226 Difference]: Without dead ends: 1111 [2020-09-21 11:08:08,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:08:08,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2020-09-21 11:08:08,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 919. [2020-09-21 11:08:08,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-09-21 11:08:08,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1098 transitions. [2020-09-21 11:08:08,685 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1098 transitions. Word has length 87 [2020-09-21 11:08:08,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:08:08,685 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1098 transitions. [2020-09-21 11:08:08,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:08:08,685 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1098 transitions. [2020-09-21 11:08:08,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-21 11:08:08,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:08:08,689 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:08:08,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:08:08,690 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:08:08,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:08:08,690 INFO L82 PathProgramCache]: Analyzing trace with hash -2007066912, now seen corresponding path program 1 times [2020-09-21 11:08:08,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:08:08,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728750902] [2020-09-21 11:08:08,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:08:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:08:08,756 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:08:08,756 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:08:08,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:08:08,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:08:08 BoogieIcfgContainer [2020-09-21 11:08:08,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:08:08,792 INFO L168 Benchmark]: Toolchain (without parser) took 34559.84 ms. Allocated memory was 140.0 MB in the beginning and 675.8 MB in the end (delta: 535.8 MB). Free memory was 101.3 MB in the beginning and 309.4 MB in the end (delta: -208.1 MB). Peak memory consumption was 327.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:08:08,793 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:08:08,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.09 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.6 MB in the beginning and 174.3 MB in the end (delta: -73.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:08:08,795 INFO L168 Benchmark]: Boogie Preprocessor took 115.27 ms. Allocated memory is still 204.5 MB. Free memory was 174.3 MB in the beginning and 170.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:08:08,795 INFO L168 Benchmark]: RCFGBuilder took 1046.15 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 170.3 MB in the beginning and 202.0 MB in the end (delta: -31.7 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:08:08,796 INFO L168 Benchmark]: TraceAbstraction took 32725.64 ms. Allocated memory was 237.0 MB in the beginning and 675.8 MB in the end (delta: 438.8 MB). Free memory was 200.6 MB in the beginning and 309.4 MB in the end (delta: -108.8 MB). Peak memory consumption was 330.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:08:08,800 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 665.09 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.6 MB in the beginning and 174.3 MB in the end (delta: -73.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.27 ms. Allocated memory is still 204.5 MB. Free memory was 174.3 MB in the beginning and 170.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1046.15 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 170.3 MB in the beginning and 202.0 MB in the end (delta: -31.7 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32725.64 ms. Allocated memory was 237.0 MB in the beginning and 675.8 MB in the end (delta: 438.8 MB). Free memory was 200.6 MB in the beginning and 309.4 MB in the end (delta: -108.8 MB). Peak memory consumption was 330.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 284]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L292] int pumpRunning = 0; [L293] int systemActive = 1; [L679] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L876] int methAndRunningLastTime ; [L257] int retValue_acc ; [L258] int tmp ; [L262] FCALL select_helpers() [L263] FCALL select_features() [L264] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L264] RET, EXPR valid_product() [L264] tmp = valid_product() [L266] COND TRUE \read(tmp) [L268] FCALL setup() [L269] CALL runTest() [L250] CALL __utac_acc__Specification2_spec__1() [L881] methAndRunningLastTime = 0 [L250] RET __utac_acc__Specification2_spec__1() [L251] CALL test() [L446] int splverifierCounter ; [L447] int tmp ; [L448] int tmp___0 ; [L449] int tmp___1 ; [L450] int tmp___2 ; [L453] splverifierCounter = 0 [L455] COND TRUE 1 [L457] COND TRUE splverifierCounter < 4 [L463] tmp = __VERIFIER_nondet_int() [L465] COND TRUE \read(tmp) [L467] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L467] RET waterRise() [L473] tmp___0 = __VERIFIER_nondet_int() [L475] COND TRUE \read(tmp___0) [L477] CALL changeMethaneLevel() [L115] COND FALSE !(\read(methaneLevelCritical)) [L118] methaneLevelCritical = 1 [L477] RET changeMethaneLevel() [L483] tmp___2 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___2) [L498] CALL timeShift() [L300] COND FALSE !(\read(pumpRunning)) [L307] COND TRUE \read(systemActive) [L309] CALL processEnvironment() [L329] int tmp ; [L332] COND TRUE ! pumpRunning [L334] CALL, EXPR isHighWaterLevel() [L426] int retValue_acc ; [L427] int tmp ; [L428] int tmp___0 ; [L432] CALL, EXPR isHighWaterSensorDry() [L165] int retValue_acc ; [L168] COND FALSE !(waterLevel < 2) [L172] retValue_acc = 0 [L173] return (retValue_acc); [L432] RET, EXPR isHighWaterSensorDry() [L432] tmp = isHighWaterSensorDry() [L434] COND FALSE !(\read(tmp)) [L437] tmp___0 = 1 [L439] retValue_acc = tmp___0 [L440] return (retValue_acc); [L334] RET, EXPR isHighWaterLevel() [L334] tmp = isHighWaterLevel() [L336] COND TRUE \read(tmp) [L338] CALL activatePump() [L357] pumpRunning = 1 [L338] RET activatePump() [L309] RET processEnvironment() [L315] CALL __utac_acc__Specification2_spec__2() [L886] int tmp ; [L887] int tmp___0 ; [L891] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L891] RET, EXPR isMethaneLevelCritical() [L891] tmp = isMethaneLevelCritical() [L893] COND TRUE \read(tmp) [L895] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L895] RET, EXPR isPumpRunning() [L895] tmp___0 = isPumpRunning() [L897] COND TRUE \read(tmp___0) [L898] COND FALSE !(\read(methAndRunningLastTime)) [L903] methAndRunningLastTime = 1 [L315] RET __utac_acc__Specification2_spec__2() [L498] RET timeShift() [L455] COND TRUE 1 [L457] COND TRUE splverifierCounter < 4 [L463] tmp = __VERIFIER_nondet_int() [L465] COND FALSE !(\read(tmp)) [L473] tmp___0 = __VERIFIER_nondet_int() [L475] COND FALSE !(\read(tmp___0)) [L483] tmp___2 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___2) [L498] CALL timeShift() [L300] COND TRUE \read(pumpRunning) [L302] CALL lowerWaterLevel() [L91] COND TRUE waterLevel > 0 [L92] waterLevel = waterLevel - 1 [L302] RET lowerWaterLevel() [L307] COND TRUE \read(systemActive) [L309] CALL processEnvironment() [L329] int tmp ; [L332] COND FALSE !(! pumpRunning) [L347] FCALL processEnvironment__wrappee__base() [L309] RET processEnvironment() [L315] CALL __utac_acc__Specification2_spec__2() [L886] int tmp ; [L887] int tmp___0 ; [L891] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L891] RET, EXPR isMethaneLevelCritical() [L891] tmp = isMethaneLevelCritical() [L893] COND TRUE \read(tmp) [L895] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L895] RET, EXPR isPumpRunning() [L895] tmp___0 = isPumpRunning() [L897] COND TRUE \read(tmp___0) [L898] COND TRUE \read(methAndRunningLastTime) [L900] CALL __automaton_fail() [L284] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.6s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 24.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 975 SDtfs, 2350 SDslu, 1007 SDs, 0 SdLazy, 4245 SolverSat, 1483 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 400 GetRequests, 259 SyntacticMatches, 3 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=919occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 841 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 848 NumberOfCodeBlocks, 848 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 709 ConstructedInterpolants, 0 QuantifiedInterpolants, 231440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...