/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:26:16,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:26:16,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:26:16,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:26:16,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:26:16,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:26:16,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:26:16,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:26:16,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:26:16,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:26:16,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:26:16,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:26:16,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:26:16,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:26:16,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:26:16,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:26:16,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:26:16,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:26:16,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:26:16,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:26:16,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:26:16,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:26:16,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:26:16,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:26:16,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:26:16,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:26:16,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:26:16,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:26:16,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:26:16,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:26:16,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:26:16,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:26:16,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:26:16,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:26:16,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:26:16,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:26:16,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:26:16,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:26:16,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:26:16,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:26:16,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:26:16,747 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 22:26:16,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:26:16,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:26:16,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:26:16,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:26:16,776 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:26:16,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:26:16,776 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:26:16,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:26:16,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:26:16,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:26:16,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:26:16,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:26:16,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:26:16,778 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:26:16,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:26:16,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:26:16,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:26:16,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:26:16,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:26:16,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:26:16,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:26:16,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:26:16,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:26:16,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:26:16,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:26:16,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:26:16,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:26:16,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:26:16,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:26:16,781 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:26:17,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:26:17,294 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:26:17,299 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:26:17,301 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:26:17,303 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:26:17,304 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-24 22:26:17,384 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3eae677f/7fd88d70e4434f1c9c0b6d9ab7164625/FLAG6a81e2c9e [2020-09-24 22:26:18,011 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:26:18,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2020-09-24 22:26:18,026 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3eae677f/7fd88d70e4434f1c9c0b6d9ab7164625/FLAG6a81e2c9e [2020-09-24 22:26:18,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3eae677f/7fd88d70e4434f1c9c0b6d9ab7164625 [2020-09-24 22:26:18,278 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:26:18,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:26:18,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:26:18,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:26:18,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:26:18,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:26:18" (1/1) ... [2020-09-24 22:26:18,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2894617f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:18, skipping insertion in model container [2020-09-24 22:26:18,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:26:18" (1/1) ... [2020-09-24 22:26:18,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:26:18,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:26:18,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:26:18,761 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:26:18,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:26:18,994 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:26:18,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:18 WrapperNode [2020-09-24 22:26:18,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:26:18,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:26:18,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:26:18,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:26:19,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:18" (1/1) ... [2020-09-24 22:26:19,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:18" (1/1) ... [2020-09-24 22:26:19,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:18" (1/1) ... [2020-09-24 22:26:19,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:18" (1/1) ... [2020-09-24 22:26:19,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:18" (1/1) ... [2020-09-24 22:26:19,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:18" (1/1) ... [2020-09-24 22:26:19,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:18" (1/1) ... [2020-09-24 22:26:19,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:26:19,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:26:19,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:26:19,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:26:19,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:18" (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 22:26:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:26:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:26:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:26:19,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:26:19,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 22:26:19,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 22:26:19,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:26:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:26:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:26:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:26:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:26:19,182 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:26:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:26:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:26:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:26:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:26:19,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:26:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:26:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:26:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:26:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:26:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:26:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:26:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:26:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:26:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:26:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:26:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:26:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:26:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:26:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:26:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:26:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:26:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:26:19,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:26:19,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:26:19,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:26:19,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:26:19,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:26:19,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:26:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:26:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:26:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:26:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:26:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:26:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:26:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 22:26:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 22:26:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:26:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:26:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:26:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:26:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:26:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:26:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:26:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:26:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:26:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:26:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:26:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:26:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:26:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:26:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:26:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:26:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:26:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:26:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:26:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:26:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:26:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:26:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:26:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:26:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:26:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:26:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:26:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:26:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:26:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:26:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:26:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:26:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:26:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:26:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:26:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:26:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:26:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:26:20,380 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:26:20,380 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:26:20,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:26:20 BoogieIcfgContainer [2020-09-24 22:26:20,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:26:20,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:26:20,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:26:20,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:26:20,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:26:18" (1/3) ... [2020-09-24 22:26:20,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcf6b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:26:20, skipping insertion in model container [2020-09-24 22:26:20,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:18" (2/3) ... [2020-09-24 22:26:20,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcf6b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:26:20, skipping insertion in model container [2020-09-24 22:26:20,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:26:20" (3/3) ... [2020-09-24 22:26:20,398 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2020-09-24 22:26:20,410 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:26:20,424 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:26:20,448 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:26:20,484 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:26:20,484 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:26:20,484 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:26:20,484 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:26:20,485 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:26:20,485 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:26:20,485 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:26:20,485 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:26:20,516 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-24 22:26:20,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 22:26:20,536 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:26:20,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:26:20,539 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:26:20,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:26:20,548 INFO L82 PathProgramCache]: Analyzing trace with hash 837157569, now seen corresponding path program 1 times [2020-09-24 22:26:20,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:26:20,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679448148] [2020-09-24 22:26:20,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:26:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:21,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:21,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:22,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:23,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:24,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:25,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:25,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 22:26:25,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:26:25,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 22:26:25,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:25,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:26:25,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 22:26:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:26:25,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:26:26,402 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:26:26,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:26:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:26,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:26,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:26,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:26:26,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:26,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 22:26:26,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:26,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:26,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:26,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:26,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:26,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:26:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:26,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:26,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:26,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:26,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:26,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:26:26,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:26,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:26,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:26,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:26,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:26:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:26,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:26,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:26,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:26,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:26,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:26,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:26,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:26,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:26,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:26,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:26,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:26:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:26,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:26,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:26,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:26,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:26,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 22:26:26,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:26,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:26,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:26,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:26,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:26,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:26:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:26,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:26,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:26,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:26,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:26,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:26,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:26,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:26,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:26,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:26,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:26,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:26:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:26,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:26,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:26,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:26,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:26,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:26,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:26,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:26,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:26,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:26,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:26,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 22:26:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:26,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:26,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:26,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:26,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:26,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:26:26,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:26,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:26:26,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:26,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:26:26,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:26,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:26:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:26,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:26,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:26,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:26,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:26,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:26:26,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:26,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:26:26,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:26:26,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679448148] [2020-09-24 22:26:26,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:26:26,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:26:26,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370331826] [2020-09-24 22:26:26,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:26:26,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:26:26,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:26:26,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:26:26,851 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 9 states. [2020-09-24 22:26:27,641 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:26:29,045 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:29,398 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:26:29,753 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:30,107 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:26:30,442 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:31,237 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:26:31,561 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:31,907 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:26:32,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:26:32,894 INFO L93 Difference]: Finished difference Result 597 states and 734 transitions. [2020-09-24 22:26:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 22:26:32,899 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 22:26:32,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:26:32,920 INFO L225 Difference]: With dead ends: 597 [2020-09-24 22:26:32,921 INFO L226 Difference]: Without dead ends: 407 [2020-09-24 22:26:32,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 22:26:32,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-24 22:26:33,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 355. [2020-09-24 22:26:33,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-24 22:26:33,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 397 transitions. [2020-09-24 22:26:33,072 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 397 transitions. Word has length 148 [2020-09-24 22:26:33,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:26:33,073 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 397 transitions. [2020-09-24 22:26:33,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:26:33,074 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 397 transitions. [2020-09-24 22:26:33,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 22:26:33,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:26:33,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:26:33,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:26:33,080 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:26:33,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:26:33,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1241488879, now seen corresponding path program 1 times [2020-09-24 22:26:33,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:26:33,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035772662] [2020-09-24 22:26:33,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:26:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:34,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:35,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 22:26:38,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:26:38,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-24 22:26:38,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:26:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 22:26:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:26:38,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:38,494 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:26:38,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:26:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:26:38,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 22:26:38,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:38,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:38,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:38,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:38,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:26:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:38,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:38,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:38,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:38,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:38,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:38,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:26:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:38,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:26:38,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:38,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:38,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:38,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:38,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:26:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:38,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:26:38,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:38,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:38,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:38,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:38,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:26:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:38,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:26:38,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:38,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:38,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:26:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:38,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:38,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:38,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:38,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:38,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:38,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 22:26:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:26:38,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 22:26:38,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:26:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:26:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:26:38,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:38,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:26:38,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 22:26:38,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:26:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:26:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:26:38,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:38,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:26:38,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 22:26:38,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:38,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:38,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:26:38,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:38,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:26:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:26:38,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:26:38,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:38,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:38,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:38,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:38,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:26:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:38,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:38,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:38,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:26:38,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:38,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:38,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 22:26:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:38,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:38,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:38,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:38,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:38,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:38,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:38,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:38,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:38,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 22:26:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:39,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:39,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:39,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:39,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:39,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:39,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:39,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:39,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:39,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:39,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:39,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:26:39,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035772662] [2020-09-24 22:26:39,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:26:39,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:26:39,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887453701] [2020-09-24 22:26:39,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:26:39,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:26:39,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:26:39,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:26:39,057 INFO L87 Difference]: Start difference. First operand 355 states and 397 transitions. Second operand 10 states. [2020-09-24 22:26:40,716 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:41,057 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:26:41,424 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 22:26:41,746 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:26:42,079 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:26:42,380 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:26:43,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:26:43,313 INFO L93 Difference]: Finished difference Result 692 states and 841 transitions. [2020-09-24 22:26:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:26:43,313 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2020-09-24 22:26:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:26:43,322 INFO L225 Difference]: With dead ends: 692 [2020-09-24 22:26:43,322 INFO L226 Difference]: Without dead ends: 452 [2020-09-24 22:26:43,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:26:43,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-09-24 22:26:43,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 369. [2020-09-24 22:26:43,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-24 22:26:43,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 417 transitions. [2020-09-24 22:26:43,401 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 417 transitions. Word has length 187 [2020-09-24 22:26:43,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:26:43,402 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 417 transitions. [2020-09-24 22:26:43,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:26:43,402 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 417 transitions. [2020-09-24 22:26:43,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 22:26:43,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:26:43,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:26:43,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:26:43,407 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:26:43,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:26:43,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1116284495, now seen corresponding path program 1 times [2020-09-24 22:26:43,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:26:43,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985851962] [2020-09-24 22:26:43,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:26:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:44,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:45,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:48,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:48,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 22:26:48,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:26:48,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-24 22:26:48,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:48,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:48,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 22:26:48,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:26:48,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:48,846 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:26:48,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:26:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:48,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:48,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:48,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:26:48,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:48,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 22:26:48,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:48,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:49,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:26:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:49,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:26:49,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:49,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:49,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:49,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:49,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:26:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:49,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:49,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:49,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:49,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:26:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:49,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:26:49,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:49,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:49,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:26:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:49,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:26:49,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:49,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:49,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:26:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:49,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:49,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:49,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:49,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:49,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:49,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 22:26:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:26:49,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 22:26:49,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:26:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:26:49,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:49,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:26:49,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 22:26:49,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:26:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:26:49,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:49,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:26:49,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 22:26:49,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:49,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:26:49,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:26:49,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:49,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:26:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:26:49,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:26:49,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:26:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:26:49,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:49,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:26:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:49,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:49,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:26:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:49,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:49,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 22:26:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:49,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:49,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:49,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:49,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:49,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 22:26:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:49,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:49,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:49,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:49,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:49,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:49,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:49,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:49,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:49,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:49,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:26:49,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985851962] [2020-09-24 22:26:49,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:26:49,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:26:49,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324766952] [2020-09-24 22:26:49,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:26:49,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:26:49,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:26:49,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:26:49,390 INFO L87 Difference]: Start difference. First operand 369 states and 417 transitions. Second operand 9 states. [2020-09-24 22:26:50,792 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:26:51,115 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:26:51,400 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:51,753 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:26:52,099 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:53,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:26:53,155 INFO L93 Difference]: Finished difference Result 712 states and 884 transitions. [2020-09-24 22:26:53,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:26:53,155 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 187 [2020-09-24 22:26:53,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:26:53,161 INFO L225 Difference]: With dead ends: 712 [2020-09-24 22:26:53,161 INFO L226 Difference]: Without dead ends: 458 [2020-09-24 22:26:53,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:26:53,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-09-24 22:26:53,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 375. [2020-09-24 22:26:53,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 22:26:53,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 423 transitions. [2020-09-24 22:26:53,224 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 423 transitions. Word has length 187 [2020-09-24 22:26:53,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:26:53,225 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 423 transitions. [2020-09-24 22:26:53,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:26:53,225 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 423 transitions. [2020-09-24 22:26:53,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 22:26:53,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:26:53,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:26:53,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:26:53,228 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:26:53,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:26:53,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1806778636, now seen corresponding path program 1 times [2020-09-24 22:26:53,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:26:53,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933416145] [2020-09-24 22:26:53,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:26:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:55,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:56,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 22:26:58,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:26:58,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 22:26:58,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:26:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 22:26:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:26:58,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:58,645 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:26:58,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:26:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:26:58,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 22:26:58,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:26:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:58,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:58,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:26:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:58,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:58,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:26:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:58,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:26:58,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:26:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:58,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:58,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:26:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:58,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:58,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 22:26:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:26:58,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:26:58,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 22:26:58,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:26:58,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:26:58,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 22:26:58,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:26:58,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:26:58,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:26:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:26:58,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:26:58,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:26:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:58,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:58,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:58,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 22:26:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:58,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:58,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:58,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:58,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:58,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:58,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:58,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:58,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:58,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:58,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 22:26:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:59,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:59,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:59,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:59,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:59,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:59,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:59,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:59,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:59,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:26:59,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933416145] [2020-09-24 22:26:59,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:26:59,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:26:59,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074332666] [2020-09-24 22:26:59,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:26:59,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:26:59,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:26:59,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:26:59,111 INFO L87 Difference]: Start difference. First operand 375 states and 423 transitions. Second operand 6 states. [2020-09-24 22:26:59,786 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:27:01,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:27:01,051 INFO L93 Difference]: Finished difference Result 616 states and 716 transitions. [2020-09-24 22:27:01,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:27:01,052 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2020-09-24 22:27:01,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:27:01,059 INFO L225 Difference]: With dead ends: 616 [2020-09-24 22:27:01,060 INFO L226 Difference]: Without dead ends: 424 [2020-09-24 22:27:01,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:27:01,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-09-24 22:27:01,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 355. [2020-09-24 22:27:01,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-24 22:27:01,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 389 transitions. [2020-09-24 22:27:01,132 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 389 transitions. Word has length 187 [2020-09-24 22:27:01,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:27:01,133 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 389 transitions. [2020-09-24 22:27:01,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:27:01,133 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 389 transitions. [2020-09-24 22:27:01,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 22:27:01,136 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:27:01,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:01,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:27:01,137 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:27:01,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:27:01,137 INFO L82 PathProgramCache]: Analyzing trace with hash 562800399, now seen corresponding path program 1 times [2020-09-24 22:27:01,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:27:01,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237917404] [2020-09-24 22:27:01,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:27:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:27:01,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:02,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:27:02,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking...