/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 --rcfgbuilder.size.of.a.code.block SingleStatement --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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:08:51,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:08:51,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:08:51,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:08:51,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:08:51,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:08:51,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:08:51,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:08:51,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:08:51,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:08:51,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:08:51,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:08:51,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:08:51,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:08:51,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:08:51,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:08:51,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:08:51,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:08:51,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:08:51,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:08:51,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:08:51,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:08:51,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:08:51,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:08:51,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:08:51,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:08:51,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:08:51,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:08:51,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:08:51,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:08:51,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:08:51,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:08:51,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:08:51,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:08:51,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:08:51,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:08:51,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:08:51,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:08:51,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:08:51,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:08:51,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:08:51,194 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 [2020-09-24 18:08:51,235 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:08:51,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:08:51,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:08:51,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:08:51,238 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:08:51,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:08:51,239 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:08:51,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:08:51,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:08:51,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:08:51,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:08:51,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:08:51,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:08:51,242 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:08:51,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:08:51,242 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:08:51,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:08:51,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:08:51,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:08:51,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:08:51,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:08:51,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:08:51,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:08:51,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:08:51,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:08:51,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:08:51,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:08:51,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:08:51,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:08:51,246 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.rcfgbuilder: Size of a code block -> SingleStatement 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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:08:51,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:08:51,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:08:51,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:08:51,802 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:08:51,802 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:08:51,804 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2020-09-24 18:08:51,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bad099287/93477d10df4f49038cad5e17eae450b7/FLAG154ab227c [2020-09-24 18:08:52,549 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:08:52,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product48.cil.c [2020-09-24 18:08:52,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bad099287/93477d10df4f49038cad5e17eae450b7/FLAG154ab227c [2020-09-24 18:08:52,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bad099287/93477d10df4f49038cad5e17eae450b7 [2020-09-24 18:08:52,839 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:08:52,847 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:08:52,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:52,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:08:52,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:08:52,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:52" (1/1) ... [2020-09-24 18:08:52,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5843e464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:52, skipping insertion in model container [2020-09-24 18:08:52,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:52" (1/1) ... [2020-09-24 18:08:52,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:08:52,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:08:53,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:53,445 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:08:53,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:53,650 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:08:53,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:53 WrapperNode [2020-09-24 18:08:53,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:53,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:08:53,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:08:53,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:08:53,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:53" (1/1) ... [2020-09-24 18:08:53,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:53" (1/1) ... [2020-09-24 18:08:53,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:53" (1/1) ... [2020-09-24 18:08:53,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:53" (1/1) ... [2020-09-24 18:08:53,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:53" (1/1) ... [2020-09-24 18:08:53,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:53" (1/1) ... [2020-09-24 18:08:53,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:53" (1/1) ... [2020-09-24 18:08:53,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:08:53,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:08:53,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:08:53,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:08:53,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:53" (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 [2020-09-24 18:08:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:08:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:08:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:08:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:08:53,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:08:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:08:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:08:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:08:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:08:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:08:53,896 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:08:53,897 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 18:08:53,897 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:08:53,897 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:08:53,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:08:53,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:08:53,898 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:08:53,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:08:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:08:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:08:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:08:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:08:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:08:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:08:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:08:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:08:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:08:53,902 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:08:53,902 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:08:53,902 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:08:53,902 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:08:53,902 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:08:53,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:08:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:08:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:08:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:08:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:08:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:08:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:08:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:08:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:08:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:08:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:08:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:08:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:08:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:08:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:08:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:08:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:08:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:08:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:08:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:08:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:08:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:08:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:08:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:08:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:08:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:08:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:08:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:08:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:08:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:08:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:08:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:08:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 18:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:08:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:08:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:08:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:08:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:08:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:08:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:08:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:08:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:08:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:08:55,094 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:08:55,095 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:08:55,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:55 BoogieIcfgContainer [2020-09-24 18:08:55,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:08:55,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:08:55,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:08:55,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:08:55,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:08:52" (1/3) ... [2020-09-24 18:08:55,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63898a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:55, skipping insertion in model container [2020-09-24 18:08:55,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:53" (2/3) ... [2020-09-24 18:08:55,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63898a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:55, skipping insertion in model container [2020-09-24 18:08:55,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:55" (3/3) ... [2020-09-24 18:08:55,112 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product48.cil.c [2020-09-24 18:08:55,123 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:08:55,135 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:08:55,155 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:08:55,187 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:08:55,187 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:08:55,187 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:08:55,187 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:08:55,187 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:08:55,188 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:08:55,188 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:08:55,188 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:08:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-24 18:08:55,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:08:55,237 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:55,238 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:55,239 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:55,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:55,247 INFO L82 PathProgramCache]: Analyzing trace with hash 242208481, now seen corresponding path program 1 times [2020-09-24 18:08:55,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:55,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957570800] [2020-09-24 18:08:55,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:55,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:55,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:57,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:57,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:00,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:00,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:09:00,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:09:00,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 18:09:00,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:09:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:00,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:09:01,076 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:01,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:01,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:01,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:01,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:01,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 18:09:01,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:01,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:01,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:01,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:01,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:01,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:01,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:01,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:01,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:01,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:01,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:01,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:01,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:01,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:01,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:01,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:01,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:01,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:01,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:01,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:01,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:01,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:01,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:01,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:01,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:01,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:09:01,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:01,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:01,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:01,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:01,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:01,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:01,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:01,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:01,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:01,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:09:01,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:01,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:01,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:01,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:01,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:01,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:01,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:01,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:01,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:01,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:01,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:01,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:01,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:01,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:01,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:09:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:01,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:01,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:01,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:01,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:01,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:01,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:01,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:01,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:01,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:01,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:01,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:01,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:01,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:01,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:01,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:09:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:01,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:01,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:01,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:01,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:01,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:01,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:01,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:01,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:01,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:09:01,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:09:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:01,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:01,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:01,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:01,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:01,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:01,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:01,440 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:01,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957570800] [2020-09-24 18:09:01,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:01,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:09:01,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900386457] [2020-09-24 18:09:01,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:09:01,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:01,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:09:01,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:01,478 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 4 states. [2020-09-24 18:09:02,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:02,930 INFO L93 Difference]: Finished difference Result 540 states and 636 transitions. [2020-09-24 18:09:02,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:09:02,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:09:02,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:02,953 INFO L225 Difference]: With dead ends: 540 [2020-09-24 18:09:02,953 INFO L226 Difference]: Without dead ends: 338 [2020-09-24 18:09:02,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:02,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-09-24 18:09:03,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 287. [2020-09-24 18:09:03,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-09-24 18:09:03,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 314 transitions. [2020-09-24 18:09:03,100 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 314 transitions. Word has length 160 [2020-09-24 18:09:03,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:03,104 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 314 transitions. [2020-09-24 18:09:03,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:09:03,105 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 314 transitions. [2020-09-24 18:09:03,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:09:03,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:03,113 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:03,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:09:03,115 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:03,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:03,116 INFO L82 PathProgramCache]: Analyzing trace with hash 424618484, now seen corresponding path program 1 times [2020-09-24 18:09:03,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:03,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903248136] [2020-09-24 18:09:03,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:03,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:03,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:05,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:06,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:08,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:09:08,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:08,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 18:09:08,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:08,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:08,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:09:08,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:09:08,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:08,600 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:08,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:08,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:08,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:08,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:08,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 18:09:08,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:08,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:08,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:08,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:08,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:08,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:08,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:08,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:08,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:08,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:08,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:08,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:08,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:08,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:08,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:08,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:08,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:08,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:08,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:08,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:08,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:08,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:08,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:08,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:08,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:08,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:08,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:08,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:08,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:08,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:08,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:08,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:08,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:08,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:08,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:08,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:08,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:08,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:08,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:08,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:08,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:08,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:08,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:08,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:08,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:08,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:08,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:08,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:08,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:09:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:08,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:08,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:08,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:08,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:08,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:08,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:08,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:08,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:08,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:08,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:08,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:08,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:08,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:09:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:08,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:08,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:08,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:08,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:08,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:08,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:08,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:08,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:08,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:08,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:08,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:08,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:08,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:08,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:08,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:08,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:08,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:08,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903248136] [2020-09-24 18:09:08,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:08,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:09:08,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602252879] [2020-09-24 18:09:08,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:09:08,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:08,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:09:08,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:09:08,862 INFO L87 Difference]: Start difference. First operand 287 states and 314 transitions. Second operand 5 states. [2020-09-24 18:09:09,534 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:10,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:10,724 INFO L93 Difference]: Finished difference Result 459 states and 520 transitions. [2020-09-24 18:09:10,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:09:10,725 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:09:10,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:10,730 INFO L225 Difference]: With dead ends: 459 [2020-09-24 18:09:10,731 INFO L226 Difference]: Without dead ends: 327 [2020-09-24 18:09:10,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:09:10,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-09-24 18:09:10,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 277. [2020-09-24 18:09:10,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-24 18:09:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 301 transitions. [2020-09-24 18:09:10,808 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 301 transitions. Word has length 161 [2020-09-24 18:09:10,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:10,811 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 301 transitions. [2020-09-24 18:09:10,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:09:10,811 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 301 transitions. [2020-09-24 18:09:10,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 18:09:10,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:10,816 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:10,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:09:10,817 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:10,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:10,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1558569605, now seen corresponding path program 1 times [2020-09-24 18:09:10,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:10,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477616750] [2020-09-24 18:09:10,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:10,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:11,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:11,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:15,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:15,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:09:15,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:09:15,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-24 18:09:15,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:15,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:15,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 18:09:15,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 18:09:15,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:16,261 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:16,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:16,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:16,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:16,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 18:09:16,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:16,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:16,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:16,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:16,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:16,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:16,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:16,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:16,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:16,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:16,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:16,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:16,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:16,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:16,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:16,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:16,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:16,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:16,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:16,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:16,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:16,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:16,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:16,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:16,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:16,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:16,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:16,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:16,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:16,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:16,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:16,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:16,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:16,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:16,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:16,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:16,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:16,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:16,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:16,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:16,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:16,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:16,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:16,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:16,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:09:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:16,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:16,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:16,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:16,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:09:16,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:16,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:09:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:16,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:16,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:16,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:16,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:16,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:16,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:16,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:09:16,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:16,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:16,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:16,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:16,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:16,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:16,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:16,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:16,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:09:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:16,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:16,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:16,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:16,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:16,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:16,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:16,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:16,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:16,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 18:09:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:16,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:16,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:16,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:16,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:16,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:16,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:16,580 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:16,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477616750] [2020-09-24 18:09:16,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:16,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:09:16,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032149524] [2020-09-24 18:09:16,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:09:16,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:16,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:09:16,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:09:16,584 INFO L87 Difference]: Start difference. First operand 277 states and 301 transitions. Second operand 6 states. [2020-09-24 18:09:17,028 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:09:19,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:19,058 INFO L93 Difference]: Finished difference Result 683 states and 793 transitions. [2020-09-24 18:09:19,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:09:19,059 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 18:09:19,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:19,069 INFO L225 Difference]: With dead ends: 683 [2020-09-24 18:09:19,070 INFO L226 Difference]: Without dead ends: 521 [2020-09-24 18:09:19,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:09:19,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2020-09-24 18:09:19,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 429. [2020-09-24 18:09:19,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-24 18:09:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 478 transitions. [2020-09-24 18:09:19,161 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 478 transitions. Word has length 174 [2020-09-24 18:09:19,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:19,162 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 478 transitions. [2020-09-24 18:09:19,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:09:19,162 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 478 transitions. [2020-09-24 18:09:19,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-24 18:09:19,165 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:19,165 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:19,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:09:19,166 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:19,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:19,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1499637602, now seen corresponding path program 1 times [2020-09-24 18:09:19,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:19,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79186307] [2020-09-24 18:09:19,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:19,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:19,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:20,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:22,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:24,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:24,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-24 18:09:24,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:09:24,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-24 18:09:24,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:24,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:09:24,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 18:09:24,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:09:24,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:24,723 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:24,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:24,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:24,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:24,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:24,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:24,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-24 18:09:24,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:24,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:24,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:24,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:24,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:24,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:24,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:24,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:24,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:24,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:24,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:24,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:24,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:24,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:24,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:24,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:24,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:24,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:24,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:24,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:24,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:24,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:24,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:24,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:24,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:24,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:24,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:24,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:24,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:24,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:24,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:24,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:24,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:24,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:24,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:24,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:24,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:24,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:24,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:24,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:24,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:24,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:24,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:24,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:24,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:24,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:24,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:24,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:24,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:24,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:24,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:24,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:24,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:24,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:24,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:24,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:24,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 18:09:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:24,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:24,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:24,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:09:24,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:24,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:24,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:24,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:24,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:24,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:24,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:24,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 18:09:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:25,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:25,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:25,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:25,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:25,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:25,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:25,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:25,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:25,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:25,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:25,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:25,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:25,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:25,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:25,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:25,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:25,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:25,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:25,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:25,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 18:09:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:25,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:25,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:25,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:25,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:25,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:25,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:25,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:25,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:25,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:09:25,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:25,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-24 18:09:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:25,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:25,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:25,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:25,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:25,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 18:09:25,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:25,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:25,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:25,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:09:25,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 18:09:25,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79186307] [2020-09-24 18:09:25,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:25,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:09:25,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065226271] [2020-09-24 18:09:25,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:09:25,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:25,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:09:25,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:09:25,161 INFO L87 Difference]: Start difference. First operand 429 states and 478 transitions. Second operand 10 states. [2020-09-24 18:09:26,002 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:26,989 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:09:27,324 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:09:28,651 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:09:29,008 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:29,376 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:29,990 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:09:30,345 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 18:09:30,677 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:09:31,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:31,206 INFO L93 Difference]: Finished difference Result 1044 states and 1243 transitions. [2020-09-24 18:09:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 18:09:31,207 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-24 18:09:31,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:31,213 INFO L225 Difference]: With dead ends: 1044 [2020-09-24 18:09:31,214 INFO L226 Difference]: Without dead ends: 730 [2020-09-24 18:09:31,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 18:09:31,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2020-09-24 18:09:31,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 643. [2020-09-24 18:09:31,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-09-24 18:09:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 720 transitions. [2020-09-24 18:09:31,302 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 720 transitions. Word has length 179 [2020-09-24 18:09:31,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:31,303 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 720 transitions. [2020-09-24 18:09:31,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:09:31,303 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 720 transitions. [2020-09-24 18:09:31,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-24 18:09:31,307 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:31,307 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:31,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:09:31,308 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:31,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:31,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1825094604, now seen corresponding path program 1 times [2020-09-24 18:09:31,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:31,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709282224] [2020-09-24 18:09:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:31,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-24 18:09:32,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-09-24 18:09:32,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:09:32,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-24 18:09:32,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:09:32,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:32,486 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:32,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:32,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 18:09:32,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:32,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:32,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:32,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:32,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:32,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:32,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:32,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:32,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:32,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:32,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:32,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:32,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:32,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:32,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:32,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:32,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:32,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:32,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:32,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:32,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:32,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:32,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:32,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:32,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:32,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:32,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:32,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:32,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:32,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:32,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:09:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:32,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:32,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:32,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:32,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:09:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:32,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:32,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:32,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:32,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:32,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:32,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:32,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:32,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:32,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:32,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:32,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:32,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 18:09:32,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 18:09:32,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:09:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 18:09:32,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:09:32,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:32,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 18:09:32,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 18:09:32,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:09:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:09:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:09:32,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:32,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:32,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:09:32,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:32,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 18:09:32,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:32,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:09:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:33,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:09:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:09:33,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:33,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:33,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:33,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:09:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 18:09:33,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 18:09:33,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 18:09:33,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:33,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:09:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 18:09:33,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:33,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:33,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:09:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:33,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:33,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:33,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:33,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 18:09:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:33,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:33,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:33,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 18:09:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:33,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:33,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:33,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:33,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-24 18:09:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:33,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:33,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:33,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:33,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:33,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:33,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:33,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:33,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:33,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709282224] [2020-09-24 18:09:33,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:33,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 18:09:33,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704724220] [2020-09-24 18:09:33,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 18:09:33,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:33,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 18:09:33,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:09:33,140 INFO L87 Difference]: Start difference. First operand 643 states and 720 transitions. Second operand 11 states. [2020-09-24 18:09:34,992 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:35,353 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:09:35,697 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 18:09:36,041 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:36,398 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:09:36,756 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:38,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:38,377 INFO L93 Difference]: Finished difference Result 1360 states and 1640 transitions. [2020-09-24 18:09:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 18:09:38,378 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2020-09-24 18:09:38,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:38,384 INFO L225 Difference]: With dead ends: 1360 [2020-09-24 18:09:38,384 INFO L226 Difference]: Without dead ends: 832 [2020-09-24 18:09:38,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 18:09:38,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-09-24 18:09:38,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 662. [2020-09-24 18:09:38,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2020-09-24 18:09:38,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 740 transitions. [2020-09-24 18:09:38,543 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 740 transitions. Word has length 234 [2020-09-24 18:09:38,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:38,544 INFO L479 AbstractCegarLoop]: Abstraction has 662 states and 740 transitions. [2020-09-24 18:09:38,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 18:09:38,544 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 740 transitions. [2020-09-24 18:09:38,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-24 18:09:38,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:38,547 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:38,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:09:38,547 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:38,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:38,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1802126292, now seen corresponding path program 1 times [2020-09-24 18:09:38,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:38,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674770281] [2020-09-24 18:09:38,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-24 18:09:39,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 736 [2020-09-24 18:09:39,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:39,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-24 18:09:39,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:39,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,614 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:39,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:39,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 18:09:39,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:39,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:39,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:39,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:39,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:39,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:39,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:39,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:39,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:39,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:39,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:39,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:39,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:39,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:39,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:39,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:39,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:39,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:39,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:39,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:39,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:39,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:39,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:39,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:09:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:39,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:39,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:39,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:09:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:39,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:39,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:39,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:39,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:39,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:39,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 18:09:39,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 18:09:39,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 18:09:39,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:39,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:39,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:39,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 18:09:39,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:39,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 18:09:39,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:39,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:39,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:39,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:39,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:09:40,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 18:09:40,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:40,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 18:09:40,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:40,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:09:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:09:40,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:40,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:09:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:09:40,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:09:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 18:09:40,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:09:40,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 18:09:40,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:09:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 18:09:40,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:40,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:40,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:09:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:40,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:40,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 18:09:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:40,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:40,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 18:09:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:40,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:40,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:40,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-24 18:09:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:40,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:40,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:40,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:40,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:40,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:40,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:40,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:40,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:40,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:40,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:40,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674770281] [2020-09-24 18:09:40,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:40,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:09:40,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556960009] [2020-09-24 18:09:40,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:09:40,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:40,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:09:40,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:09:40,164 INFO L87 Difference]: Start difference. First operand 662 states and 740 transitions. Second operand 10 states.