/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_spec1_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:17:59,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:17:59,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:17:59,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:17:59,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:17:59,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:17:59,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:17:59,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:17:59,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:17:59,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:17:59,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:17:59,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:17:59,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:17:59,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:17:59,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:17:59,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:17:59,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:17:59,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:17:59,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:17:59,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:17:59,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:17:59,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:17:59,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:17:59,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:17:59,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:17:59,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:17:59,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:17:59,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:17:59,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:17:59,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:17:59,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:17:59,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:17:59,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:17:59,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:17:59,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:17:59,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:17:59,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:17:59,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:17:59,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:17:59,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:17:59,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:17:59,783 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 [2020-09-25 06:17:59,833 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:17:59,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:17:59,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:17:59,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:17:59,837 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:17:59,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:17:59,838 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:17:59,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:17:59,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:17:59,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:17:59,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:17:59,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:17:59,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:17:59,841 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:17:59,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:17:59,841 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:17:59,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:17:59,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:17:59,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:17:59,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:17:59,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:17:59,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:17:59,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:17:59,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:17:59,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:17:59,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:17:59,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:17:59,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:17:59,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:17:59,844 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:18:00,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:18:00,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:18:00,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:18:00,353 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:18:00,353 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:18:00,354 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-09-25 06:18:00,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d82326869/d5ad4c51e6bc430591c4b932ff1d778a/FLAG11ae1edbe [2020-09-25 06:18:00,998 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:18:00,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-09-25 06:18:01,013 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d82326869/d5ad4c51e6bc430591c4b932ff1d778a/FLAG11ae1edbe [2020-09-25 06:18:01,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d82326869/d5ad4c51e6bc430591c4b932ff1d778a [2020-09-25 06:18:01,291 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:18:01,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:18:01,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:18:01,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:18:01,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:18:01,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:18:01" (1/1) ... [2020-09-25 06:18:01,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:01, skipping insertion in model container [2020-09-25 06:18:01,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:18:01" (1/1) ... [2020-09-25 06:18:01,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:18:01,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:18:01,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:18:01,786 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:18:02,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:18:02,041 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:18:02,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:02 WrapperNode [2020-09-25 06:18:02,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:18:02,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:18:02,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:18:02,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:18:02,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:02" (1/1) ... [2020-09-25 06:18:02,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:02" (1/1) ... [2020-09-25 06:18:02,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:02" (1/1) ... [2020-09-25 06:18:02,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:02" (1/1) ... [2020-09-25 06:18:02,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:02" (1/1) ... [2020-09-25 06:18:02,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:02" (1/1) ... [2020-09-25 06:18:02,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:02" (1/1) ... [2020-09-25 06:18:02,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:18:02,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:18:02,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:18:02,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:18:02,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:02" (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 [2020-09-25 06:18:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:18:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:18:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:18:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:18:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:18:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:18:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:18:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:18:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:18:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:18:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:18:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:18:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:18:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:18:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:18:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:18:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:18:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:18:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:18:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:18:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:18:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:18:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:18:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:18:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:18:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:18:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:18:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:18:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:18:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:18:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:18:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:18:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:18:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:18:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:18:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:18:02,227 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:18:02,227 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:18:02,227 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:18:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:18:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:18:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:18:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:18:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:18:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:18:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:18:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:18:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:18:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:18:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:18:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:18:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:18:02,229 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:18:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:18:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:18:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:18:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:18:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:18:02,230 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:18:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:18:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 06:18:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:18:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:18:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:18:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:18:02,231 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:18:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:18:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:18:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:18:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:18:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:18:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:18:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:18:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:18:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:18:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:18:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:18:02,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:18:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:18:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:18:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:18:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:18:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:18:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:18:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:18:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:18:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:18:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:18:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:18:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:18:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:18:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:18:03,330 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:18:03,330 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:18:03,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:18:03 BoogieIcfgContainer [2020-09-25 06:18:03,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:18:03,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:18:03,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:18:03,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:18:03,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:18:01" (1/3) ... [2020-09-25 06:18:03,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fc92b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:18:03, skipping insertion in model container [2020-09-25 06:18:03,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:02" (2/3) ... [2020-09-25 06:18:03,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fc92b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:18:03, skipping insertion in model container [2020-09-25 06:18:03,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:18:03" (3/3) ... [2020-09-25 06:18:03,348 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2020-09-25 06:18:03,359 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:18:03,371 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:18:03,394 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:18:03,428 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:18:03,428 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:18:03,428 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:18:03,428 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:18:03,428 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:18:03,429 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:18:03,429 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:18:03,429 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:18:03,458 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 06:18:03,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:18:03,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:03,478 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] [2020-09-25 06:18:03,479 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:03,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:03,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1378033390, now seen corresponding path program 1 times [2020-09-25 06:18:03,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:03,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039125914] [2020-09-25 06:18:03,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:04,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:04,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:05,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:06,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:08,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:08,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:08,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:18:08,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:18:08,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 06:18:08,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:08,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:08,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:08,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:18:08,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 06:18:09,517 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:09,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:09,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:09,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:09,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:09,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:09,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 06:18:09,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:09,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:09,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:09,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:09,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:09,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:09,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:09,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:09,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:09,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:09,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:09,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:09,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:09,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:09,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:18:09,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:09,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:09,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:09,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:09,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:09,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:09,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:09,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:09,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:09,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:18:09,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:09,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:09,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:09,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:09,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:09,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:18:09,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:09,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:09,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:09,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:09,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:09,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:18:09,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:09,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:09,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:09,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:09,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:09,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:09,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:09,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:09,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:09,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:18:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:09,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:09,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:09,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:09,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:09,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:09,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:09,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:09,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:09,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:09,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:09,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:18:09,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:18:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:09,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:09,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:09,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:09,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:09,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:09,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:09,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:09,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:09,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:09,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:09,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:18:09,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:09,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039125914] [2020-09-25 06:18:09,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:09,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:18:09,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390001043] [2020-09-25 06:18:09,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:18:09,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:10,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:18:10,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:18:10,006 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 3 states. [2020-09-25 06:18:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:11,541 INFO L93 Difference]: Finished difference Result 475 states and 564 transitions. [2020-09-25 06:18:11,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:18:11,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:18:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:11,574 INFO L225 Difference]: With dead ends: 475 [2020-09-25 06:18:11,574 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 06:18:11,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:18:11,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 06:18:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 253. [2020-09-25 06:18:11,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 06:18:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 274 transitions. [2020-09-25 06:18:11,725 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 274 transitions. Word has length 142 [2020-09-25 06:18:11,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:11,727 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 274 transitions. [2020-09-25 06:18:11,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:18:11,727 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 274 transitions. [2020-09-25 06:18:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:18:11,732 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:11,732 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] [2020-09-25 06:18:11,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:18:11,733 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:11,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:11,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1594368587, now seen corresponding path program 1 times [2020-09-25 06:18:11,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:11,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781698948] [2020-09-25 06:18:11,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:11,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:11,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:13,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:14,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:15,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:16,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:16,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:18:16,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:18:16,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 06:18:16,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:16,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:18:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:18:16,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,127 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:17,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:17,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 06:18:17,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:17,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:17,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:17,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:17,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:17,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:17,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:17,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:17,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:17,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:17,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:17,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:17,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:18:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:17,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:17,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:17,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:18:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:17,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:17,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:17,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:17,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:17,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:17,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:17,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:17,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:17,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:17,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:17,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:17,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:17,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781698948] [2020-09-25 06:18:17,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:17,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:18:17,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166324608] [2020-09-25 06:18:17,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:18:17,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:17,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:18:17,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:18:17,374 INFO L87 Difference]: Start difference. First operand 253 states and 274 transitions. Second operand 4 states. [2020-09-25 06:18:18,108 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:18:19,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:19,155 INFO L93 Difference]: Finished difference Result 383 states and 429 transitions. [2020-09-25 06:18:19,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:18:19,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:18:19,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:19,165 INFO L225 Difference]: With dead ends: 383 [2020-09-25 06:18:19,165 INFO L226 Difference]: Without dead ends: 279 [2020-09-25 06:18:19,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:18:19,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-25 06:18:19,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 243. [2020-09-25 06:18:19,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 06:18:19,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 261 transitions. [2020-09-25 06:18:19,245 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 261 transitions. Word has length 143 [2020-09-25 06:18:19,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:19,248 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 261 transitions. [2020-09-25 06:18:19,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:18:19,248 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 261 transitions. [2020-09-25 06:18:19,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 06:18:19,258 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:19,259 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] [2020-09-25 06:18:19,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:18:19,259 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:19,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:19,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1389720772, now seen corresponding path program 1 times [2020-09-25 06:18:19,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:19,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163864208] [2020-09-25 06:18:19,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:19,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:20,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:20,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:20,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:24,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:24,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:18:24,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:18:24,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 06:18:24,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:24,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:18:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 06:18:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:18:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:24,757 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:24,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:24,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:25,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:25,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:25,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:25,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 06:18:25,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:25,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:25,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:25,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:25,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 06:18:25,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:25,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:25,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:25,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:25,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:25,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:25,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:25,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:25,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:25,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:25,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:25,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:18:25,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:25,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:25,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:25,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:25,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:25,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:25,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:25,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:25,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:25,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:18:25,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:25,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:25,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:25,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:25,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:25,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:18:25,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:25,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:18:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:25,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:25,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:25,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:25,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:25,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:25,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:18:25,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:25,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:25,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:25,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:25,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:18:25,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:18:25,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:18:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:25,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:25,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:25,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:25,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:25,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:25,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:25,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:25,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:25,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:18:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:25,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:25,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:25,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:25,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:25,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:25,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:25,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:25,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:25,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163864208] [2020-09-25 06:18:25,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:25,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:18:25,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090996487] [2020-09-25 06:18:25,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:18:25,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:25,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:18:25,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:18:25,235 INFO L87 Difference]: Start difference. First operand 243 states and 261 transitions. Second operand 5 states. [2020-09-25 06:18:25,686 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:18:26,369 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:18:28,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:28,025 INFO L93 Difference]: Finished difference Result 640 states and 732 transitions. [2020-09-25 06:18:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:18:28,026 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-09-25 06:18:28,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:28,030 INFO L225 Difference]: With dead ends: 640 [2020-09-25 06:18:28,030 INFO L226 Difference]: Without dead ends: 507 [2020-09-25 06:18:28,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:18:28,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-09-25 06:18:28,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 428. [2020-09-25 06:18:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-09-25 06:18:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 474 transitions. [2020-09-25 06:18:28,115 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 474 transitions. Word has length 152 [2020-09-25 06:18:28,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:28,116 INFO L479 AbstractCegarLoop]: Abstraction has 428 states and 474 transitions. [2020-09-25 06:18:28,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:18:28,116 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 474 transitions. [2020-09-25 06:18:28,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 06:18:28,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:28,119 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] [2020-09-25 06:18:28,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:18:28,120 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:28,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:28,120 INFO L82 PathProgramCache]: Analyzing trace with hash 2146784857, now seen corresponding path program 1 times [2020-09-25 06:18:28,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:28,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447957426] [2020-09-25 06:18:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:28,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:28,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:29,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:31,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:31,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:33,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:33,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 06:18:33,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:18:33,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 06:18:33,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:33,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:33,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:18:33,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:18:33,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:18:33,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:33,514 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:33,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:33,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:33,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:33,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:33,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:33,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 06:18:33,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:33,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:33,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:33,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:33,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:33,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:33,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:33,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:33,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:33,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:33,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:33,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:33,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:33,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:33,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:33,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:33,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:33,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:33,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:33,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:33,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:33,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:33,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:33,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:33,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:33,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:33,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:33,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:33,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:33,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:33,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:33,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:33,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:33,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:33,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:33,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:33,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:33,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:33,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:33,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:33,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:33,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:18:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:33,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:33,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:33,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:18:33,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:33,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:18:33,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:33,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:18:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:18:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:18:33,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:33,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:18:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:33,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:33,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:33,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:33,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:33,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:33,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:33,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:18:33,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:33,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:18:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:33,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:33,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:33,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:33,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:33,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:18:33,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:33,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:33,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:33,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:33,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:18:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:33,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:33,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:33,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:33,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:33,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:33,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:33,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:33,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:33,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:33,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:33,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:18:33,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:33,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447957426] [2020-09-25 06:18:33,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:33,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:18:33,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175757884] [2020-09-25 06:18:33,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:18:33,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:33,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:18:33,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:18:33,787 INFO L87 Difference]: Start difference. First operand 428 states and 474 transitions. Second operand 6 states. [2020-09-25 06:18:34,461 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:18:36,068 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:18:36,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:36,668 INFO L93 Difference]: Finished difference Result 1056 states and 1237 transitions. [2020-09-25 06:18:36,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:18:36,669 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-25 06:18:36,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:36,675 INFO L225 Difference]: With dead ends: 1056 [2020-09-25 06:18:36,675 INFO L226 Difference]: Without dead ends: 738 [2020-09-25 06:18:36,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:18:36,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2020-09-25 06:18:36,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 622. [2020-09-25 06:18:36,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-09-25 06:18:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 688 transitions. [2020-09-25 06:18:36,758 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 688 transitions. Word has length 160 [2020-09-25 06:18:36,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:36,758 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 688 transitions. [2020-09-25 06:18:36,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:18:36,759 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 688 transitions. [2020-09-25 06:18:36,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:18:36,761 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:36,761 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] [2020-09-25 06:18:36,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:18:36,761 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:36,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:36,762 INFO L82 PathProgramCache]: Analyzing trace with hash -2147122244, now seen corresponding path program 1 times [2020-09-25 06:18:36,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:36,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900957186] [2020-09-25 06:18:36,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:36,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:37,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:37,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:38,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:41,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:41,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 06:18:41,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:18:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 06:18:41,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:41,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:18:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 06:18:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:18:41,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:42,259 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:42,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:42,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:42,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:42,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:42,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:42,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 06:18:42,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:42,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:42,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:42,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:42,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:42,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:42,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:42,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:42,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:42,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:42,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:42,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:42,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:42,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:42,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:42,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:42,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:42,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:42,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:42,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:42,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:42,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:42,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:42,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:42,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:42,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:42,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:42,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:42,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:42,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:42,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:42,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:42,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:42,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:42,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:42,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:42,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:42,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:42,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:42,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:42,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:42,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:42,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:42,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:42,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:42,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:42,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:42,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 06:18:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:42,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:42,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:42,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:18:42,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:42,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:18:42,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:42,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:18:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:42,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:18:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:42,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:42,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:42,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:42,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:42,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:42,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:42,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:42,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:18:42,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:42,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:18:42,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:42,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:18:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:42,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:42,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:42,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:42,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:42,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:18:42,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:42,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:42,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:18:42,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:42,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:18:42,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:42,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [900957186] [2020-09-25 06:18:42,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:42,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:18:42,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115533291] [2020-09-25 06:18:42,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:18:42,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:42,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:18:42,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:18:42,530 INFO L87 Difference]: Start difference. First operand 622 states and 688 transitions. Second operand 9 states. [2020-09-25 06:18:43,070 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:18:44,362 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:18:44,715 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:18:45,066 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:18:45,436 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:18:45,783 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:18:46,491 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:18:46,797 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:47,141 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:47,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:47,768 INFO L93 Difference]: Finished difference Result 707 states and 798 transitions. [2020-09-25 06:18:47,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:18:47,769 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 06:18:47,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:47,774 INFO L225 Difference]: With dead ends: 707 [2020-09-25 06:18:47,774 INFO L226 Difference]: Without dead ends: 704 [2020-09-25 06:18:47,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:18:47,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-09-25 06:18:47,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 622. [2020-09-25 06:18:47,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-09-25 06:18:47,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 685 transitions. [2020-09-25 06:18:47,864 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 685 transitions. Word has length 161 [2020-09-25 06:18:47,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:47,865 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 685 transitions. [2020-09-25 06:18:47,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:18:47,865 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 685 transitions. [2020-09-25 06:18:47,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 06:18:47,868 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:47,868 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:18:47,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:18:47,869 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:47,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:47,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1554282566, now seen corresponding path program 1 times [2020-09-25 06:18:47,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:47,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98886421] [2020-09-25 06:18:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:47,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking...