/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=0.4 --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_spec3_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:15:21,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:15:21,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:15:21,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:15:21,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:15:21,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:15:21,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:15:21,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:15:21,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:15:21,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:15:21,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:15:21,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:15:21,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:15:21,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:15:21,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:15:21,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:15:21,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:15:21,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:15:21,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:15:21,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:15:21,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:15:21,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:15:21,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:15:21,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:15:21,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:15:21,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:15:21,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:15:21,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:15:21,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:15:21,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:15:21,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:15:21,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:15:21,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:15:21,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:15:21,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:15:21,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:15:21,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:15:21,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:15:21,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:15:21,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:15:21,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:15:21,249 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 05:15:21,291 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:15:21,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:15:21,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:15:21,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:15:21,294 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:15:21,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:15:21,295 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:15:21,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:15:21,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:15:21,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:15:21,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:15:21,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:15:21,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:15:21,298 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:15:21,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:15:21,298 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:15:21,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:15:21,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:15:21,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:15:21,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:15:21,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:15:21,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:15:21,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:15:21,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:15:21,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:15:21,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:15:21,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:15:21,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:15:21,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:15:21,305 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:15:21,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:15:21,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:15:21,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:15:21,807 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:15:21,808 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:15:21,809 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-25 05:15:21,897 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84bc55aa6/cd3ae02e6c0544d8afbf9e94c8fa5047/FLAGa542722d2 [2020-09-25 05:15:22,490 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:15:22,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-25 05:15:22,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84bc55aa6/cd3ae02e6c0544d8afbf9e94c8fa5047/FLAGa542722d2 [2020-09-25 05:15:22,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84bc55aa6/cd3ae02e6c0544d8afbf9e94c8fa5047 [2020-09-25 05:15:22,760 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:15:22,765 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:15:22,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:15:22,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:15:22,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:15:22,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:15:22" (1/1) ... [2020-09-25 05:15:22,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:22, skipping insertion in model container [2020-09-25 05:15:22,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:15:22" (1/1) ... [2020-09-25 05:15:22,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:15:22,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:15:23,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:15:23,325 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:15:23,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:15:23,563 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:15:23,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:23 WrapperNode [2020-09-25 05:15:23,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:15:23,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:15:23,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:15:23,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:15:23,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:23" (1/1) ... [2020-09-25 05:15:23,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:23" (1/1) ... [2020-09-25 05:15:23,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:23" (1/1) ... [2020-09-25 05:15:23,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:23" (1/1) ... [2020-09-25 05:15:23,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:23" (1/1) ... [2020-09-25 05:15:23,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:23" (1/1) ... [2020-09-25 05:15:23,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:23" (1/1) ... [2020-09-25 05:15:23,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:15:23,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:15:23,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:15:23,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:15:23,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:23" (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 05:15:23,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:15:23,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:15:23,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:15:23,784 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:15:23,784 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:15:23,784 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:15:23,785 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:15:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:15:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:15:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:15:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:15:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:15:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:15:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:15:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:15:23,788 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:15:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:15:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:15:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:15:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:15:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:15:23,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:15:23,790 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:15:23,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:15:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:15:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:15:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:15:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:15:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:15:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:15:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:15:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:15:23,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:15:23,793 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:15:23,793 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:15:23,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:15:23,793 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:15:23,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:15:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:15:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:15:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:15:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:15:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:15:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:15:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:15:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:15:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:15:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:15:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:15:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:15:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:15:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:15:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:15:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:15:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:15:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:15:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:15:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:15:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:15:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:15:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:15:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:15:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:15:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:15:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:15:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:15:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:15:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:15:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:15:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:15:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:15:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:15:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:15:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:15:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:15:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:15:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:15:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:15:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:15:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:15:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:15:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:15:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:15:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:15:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:15:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:15:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:15:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:15:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:15:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:15:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:15:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:15:25,048 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:15:25,049 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:15:25,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:15:25 BoogieIcfgContainer [2020-09-25 05:15:25,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:15:25,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:15:25,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:15:25,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:15:25,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:15:22" (1/3) ... [2020-09-25 05:15:25,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccecb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:15:25, skipping insertion in model container [2020-09-25 05:15:25,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:23" (2/3) ... [2020-09-25 05:15:25,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccecb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:15:25, skipping insertion in model container [2020-09-25 05:15:25,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:15:25" (3/3) ... [2020-09-25 05:15:25,073 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2020-09-25 05:15:25,086 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:15:25,101 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:15:25,126 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:15:25,169 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:15:25,169 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:15:25,169 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:15:25,169 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:15:25,169 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:15:25,170 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:15:25,170 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:15:25,170 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:15:25,204 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-25 05:15:25,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 05:15:25,224 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:25,226 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] [2020-09-25 05:15:25,227 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:25,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:25,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1883472631, now seen corresponding path program 1 times [2020-09-25 05:15:25,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:25,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676876417] [2020-09-25 05:15:25,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:25,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:26,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:27,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:30,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:30,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 05:15:30,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:15:30,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 05:15:30,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:30,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:30,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:30,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:15:30,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:30,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:15:31,147 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:31,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:31,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:31,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:31,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:31,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:31,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 05:15:31,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:31,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:31,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:31,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:31,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:31,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:31,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:31,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:31,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:31,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:31,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:31,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:31,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:31,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:31,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:31,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:31,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:31,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:31,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:31,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:31,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:31,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:31,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:31,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:31,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:31,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:31,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:31,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:31,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:31,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:31,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:31,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:31,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:15:31,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:31,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:31,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:31,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:31,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:31,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:31,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:31,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:31,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:31,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:31,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:31,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:31,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:15:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:31,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:31,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:31,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:31,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:31,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:31,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:31,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:31,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:31,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:15:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:31,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:31,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:31,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:31,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:31,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:31,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:31,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:31,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:31,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:31,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 05:15:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:31,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:31,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:31,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:31,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:31,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:31,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:31,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:31,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:31,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:31,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:31,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:31,471 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 05:15:31,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676876417] [2020-09-25 05:15:31,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:31,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:15:31,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211808591] [2020-09-25 05:15:31,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:15:31,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:31,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:15:31,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:15:31,515 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 3 states. [2020-09-25 05:15:33,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:33,004 INFO L93 Difference]: Finished difference Result 503 states and 601 transitions. [2020-09-25 05:15:33,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:15:33,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 05:15:33,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:33,028 INFO L225 Difference]: With dead ends: 503 [2020-09-25 05:15:33,028 INFO L226 Difference]: Without dead ends: 310 [2020-09-25 05:15:33,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:15:33,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-25 05:15:33,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 267. [2020-09-25 05:15:33,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-25 05:15:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 292 transitions. [2020-09-25 05:15:33,141 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 292 transitions. Word has length 153 [2020-09-25 05:15:33,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:33,142 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 292 transitions. [2020-09-25 05:15:33,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:15:33,142 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 292 transitions. [2020-09-25 05:15:33,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 05:15:33,148 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:33,148 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] [2020-09-25 05:15:33,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:15:33,149 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:33,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:33,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1086228284, now seen corresponding path program 1 times [2020-09-25 05:15:33,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:33,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892488404] [2020-09-25 05:15:33,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:33,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:33,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:35,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:38,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:38,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:15:38,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:15:38,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 05:15:38,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:38,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:38,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:38,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:15:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:15:38,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:38,618 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:38,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:38,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:38,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:38,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:38,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:38,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 05:15:38,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:38,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:38,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:38,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:38,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:38,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:38,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:38,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:38,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:38,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:38,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:38,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:38,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:38,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:38,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:38,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:38,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:38,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:38,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:38,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:38,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:38,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:38,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:38,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:38,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:38,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:38,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:38,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:38,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:38,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:38,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:38,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:38,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:38,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:38,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:38,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:38,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:38,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:38,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:38,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:38,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:38,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:38,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:38,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:38,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:38,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:38,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:38,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:38,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:38,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:38,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:38,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:38,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:38,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:38,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 05:15:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:38,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:38,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:38,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:38,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:38,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:38,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:38,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:38,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:38,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:38,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:15:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:38,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:38,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:38,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:38,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:38,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:38,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:38,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:38,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:38,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 05:15:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:38,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:38,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:38,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:38,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:38,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:38,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:38,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:38,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:38,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:38,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:38,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:38,844 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 05:15:38,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892488404] [2020-09-25 05:15:38,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:38,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:15:38,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337753596] [2020-09-25 05:15:38,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:15:38,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:38,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:15:38,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:15:38,849 INFO L87 Difference]: Start difference. First operand 267 states and 292 transitions. Second operand 4 states. [2020-09-25 05:15:39,642 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:15:40,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:40,764 INFO L93 Difference]: Finished difference Result 414 states and 468 transitions. [2020-09-25 05:15:40,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:15:40,765 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 05:15:40,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:40,769 INFO L225 Difference]: With dead ends: 414 [2020-09-25 05:15:40,769 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 05:15:40,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:15:40,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 05:15:40,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-09-25 05:15:40,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-25 05:15:40,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 279 transitions. [2020-09-25 05:15:40,865 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 279 transitions. Word has length 154 [2020-09-25 05:15:40,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:40,866 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 279 transitions. [2020-09-25 05:15:40,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:15:40,869 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 279 transitions. [2020-09-25 05:15:40,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 05:15:40,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:40,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:15:40,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:15:40,877 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:40,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:40,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1753608415, now seen corresponding path program 1 times [2020-09-25 05:15:40,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:40,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053223837] [2020-09-25 05:15:40,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:40,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:41,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:44,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:44,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 05:15:44,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:15:44,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3836 [2020-09-25 05:15:44,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:44,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:44,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:15:44,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 05:15:44,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:15:44,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:45,203 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:45,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:45,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:45,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:45,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:45,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:45,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-09-25 05:15:45,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:45,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:45,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:45,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:45,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 05:15:45,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:45,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:45,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:45,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:45,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:45,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:45,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:45,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:45,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:45,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:45,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:45,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:45,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:45,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:45,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:45,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:45,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:45,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:45,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:45,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:45,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:45,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:45,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:45,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:45,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:45,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:45,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:45,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:45,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:45,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:45,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:15:45,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:45,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:45,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:15:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:15:45,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:45,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:45,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:45,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:45,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:45,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:45,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:45,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:45,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:45,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:45,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:45,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:15:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:45,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:45,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:45,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:45,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:45,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:45,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:45,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:15:45,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 05:15:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:45,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:45,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:45,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:45,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:45,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:45,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:45,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:45,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:45,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:45,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:45,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:45,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 05:15:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:45,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:45,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:45,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:45,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:45,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:45,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:45,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:45,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:45,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:45,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:45,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:45,766 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 05:15:45,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053223837] [2020-09-25 05:15:45,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:45,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:15:45,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789318824] [2020-09-25 05:15:45,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:15:45,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:45,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:15:45,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:15:45,770 INFO L87 Difference]: Start difference. First operand 257 states and 279 transitions. Second operand 4 states. [2020-09-25 05:15:46,322 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:15:48,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:48,211 INFO L93 Difference]: Finished difference Result 599 states and 688 transitions. [2020-09-25 05:15:48,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:15:48,213 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 05:15:48,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:48,218 INFO L225 Difference]: With dead ends: 599 [2020-09-25 05:15:48,218 INFO L226 Difference]: Without dead ends: 452 [2020-09-25 05:15:48,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:15:48,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-09-25 05:15:48,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 398. [2020-09-25 05:15:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-25 05:15:48,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 443 transitions. [2020-09-25 05:15:48,287 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 443 transitions. Word has length 163 [2020-09-25 05:15:48,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:48,287 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 443 transitions. [2020-09-25 05:15:48,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:15:48,288 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 443 transitions. [2020-09-25 05:15:48,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 05:15:48,291 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:48,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:15:48,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:15:48,292 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:48,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:48,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1156257497, now seen corresponding path program 1 times [2020-09-25 05:15:48,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:48,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259094548] [2020-09-25 05:15:48,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:48,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:49,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:49,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 05:15:49,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:49,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1659 [2020-09-25 05:15:49,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:49,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:49,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 05:15:49,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 05:15:49,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 05:15:49,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:50,453 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:50,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:50,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:50,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:50,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:50,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:50,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 05:15:50,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:50,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 05:15:50,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:50,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:50,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:50,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:50,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:50,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:50,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:50,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:50,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:50,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:50,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:50,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:50,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:50,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:50,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:50,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:50,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:50,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:50,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:50,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:50,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:50,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:50,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:50,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:50,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:50,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:50,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:50,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:50,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:15:50,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:50,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:50,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:15:50,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:50,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:50,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:50,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:50,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:50,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:50,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:50,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:50,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:50,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:50,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:50,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:50,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:50,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 05:15:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:50,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:50,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:50,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:15:50,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:50,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:50,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:15:50,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:50,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 05:15:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:50,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:50,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:50,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:50,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:50,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:50,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:50,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:15:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:50,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 05:15:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:50,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:50,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:50,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:50,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:15:50,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:50,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:15:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:50,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:15:50,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:50,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 05:15:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:50,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:50,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:50,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:50,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:50,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:50,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:50,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:50,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:50,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:50,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:50,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:50,923 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 05:15:50,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259094548] [2020-09-25 05:15:50,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:50,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:15:50,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136733236] [2020-09-25 05:15:50,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:15:50,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:50,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:15:50,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:15:50,926 INFO L87 Difference]: Start difference. First operand 398 states and 443 transitions. Second operand 10 states. [2020-09-25 05:15:51,492 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:15:53,616 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:15:54,000 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:15:54,359 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:15:54,716 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:15:55,049 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:15:55,410 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:15:55,718 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:15:56,228 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:15:57,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:57,335 INFO L93 Difference]: Finished difference Result 1069 states and 1326 transitions. [2020-09-25 05:15:57,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:15:57,336 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 05:15:57,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:57,344 INFO L225 Difference]: With dead ends: 1069 [2020-09-25 05:15:57,344 INFO L226 Difference]: Without dead ends: 781 [2020-09-25 05:15:57,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:15:57,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-09-25 05:15:57,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 657. [2020-09-25 05:15:57,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-09-25 05:15:57,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 756 transitions. [2020-09-25 05:15:57,457 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 756 transitions. Word has length 172 [2020-09-25 05:15:57,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:57,458 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 756 transitions. [2020-09-25 05:15:57,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:15:57,458 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 756 transitions. [2020-09-25 05:15:57,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 05:15:57,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:57,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:15:57,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:15:57,463 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:57,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:57,464 INFO L82 PathProgramCache]: Analyzing trace with hash 82436204, now seen corresponding path program 1 times [2020-09-25 05:15:57,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:57,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [739825176] [2020-09-25 05:15:57,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:15:57,530 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:15:57,531 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:15:57,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:15:57,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:15:57 BoogieIcfgContainer [2020-09-25 05:15:57,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:15:57,567 INFO L168 Benchmark]: Toolchain (without parser) took 34805.15 ms. Allocated memory was 146.8 MB in the beginning and 629.1 MB in the end (delta: 482.3 MB). Free memory was 101.0 MB in the beginning and 143.2 MB in the end (delta: -42.2 MB). Peak memory consumption was 440.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:15:57,567 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 146.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:15:57,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 799.02 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 100.4 MB in the beginning and 174.5 MB in the end (delta: -74.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:15:57,569 INFO L168 Benchmark]: Boogie Preprocessor took 104.72 ms. Allocated memory is still 205.0 MB. Free memory was 174.5 MB in the beginning and 170.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 05:15:57,570 INFO L168 Benchmark]: RCFGBuilder took 1391.44 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 170.4 MB in the beginning and 179.5 MB in the end (delta: -9.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2020-09-25 05:15:57,571 INFO L168 Benchmark]: TraceAbstraction took 32500.84 ms. Allocated memory was 238.0 MB in the beginning and 629.1 MB in the end (delta: 391.1 MB). Free memory was 179.5 MB in the beginning and 143.2 MB in the end (delta: 36.3 MB). Peak memory consumption was 427.4 MB. Max. memory is 7.1 GB. [2020-09-25 05:15:57,575 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 146.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 799.02 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 100.4 MB in the beginning and 174.5 MB in the end (delta: -74.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.72 ms. Allocated memory is still 205.0 MB. Free memory was 174.5 MB in the beginning and 170.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1391.44 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 170.4 MB in the beginning and 179.5 MB in the end (delta: -9.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32500.84 ms. Allocated memory was 238.0 MB in the beginning and 629.1 MB in the end (delta: 391.1 MB). Free memory was 179.5 MB in the beginning and 143.2 MB in the end (delta: 36.3 MB). Peak memory consumption was 427.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; [L895] int retValue_acc ; [L896] int tmp ; [L900] FCALL select_helpers() [L901] FCALL select_features() [L902] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L902] RET, EXPR valid_product() [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L906] FCALL setup() [L907] CALL runTest() [L889] CALL test() [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 [L390] COND TRUE 1 [L392] COND TRUE splverifierCounter < 4 [L398] tmp = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp) [L402] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L402] RET waterRise() [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) [L428] CALL stopSystem() [L367] COND FALSE !(\read(pumpRunning)) [L374] systemActive = 0 [L428] RET stopSystem() [L435] CALL timeShift() [L193] COND FALSE !(\read(pumpRunning)) [L200] COND FALSE !(\read(systemActive)) [L208] CALL __utac_acc__Specification3_spec__1() [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L925] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L925] RET, EXPR isMethaneLevelCritical() [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L931] CALL, EXPR getWaterLevel() [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L931] RET, EXPR getWaterLevel() [L931] tmp___0 = getWaterLevel() [L933] COND TRUE tmp___0 == 2 [L935] CALL, EXPR isPumpRunning() [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); [L935] RET, EXPR isPumpRunning() [L935] tmp___1 = isPumpRunning() [L937] COND FALSE !(\read(tmp___1)) [L941] CALL __automaton_fail() [L451] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 630 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1031 SDtfs, 1300 SDslu, 827 SDs, 0 SdLazy, 2280 SolverSat, 454 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=657occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 257 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.7s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 264985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...