/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:08:45,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:08:45,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:08:45,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:08:45,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:08:45,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:08:45,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:08:45,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:08:45,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:08:45,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:08:45,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:08:45,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:08:45,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:08:45,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:08:45,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:08:45,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:08:45,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:08:45,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:08:45,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:08:45,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:08:45,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:08:45,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:08:45,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:08:45,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:08:45,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:08:45,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:08:45,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:08:45,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:08:45,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:08:45,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:08:45,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:08:45,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:08:45,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:08:45,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:08:45,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:08:45,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:08:45,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:08:45,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:08:45,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:08:45,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:08:45,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:08:45,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:08:45,765 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:08:45,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:08:45,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:08:45,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:08:45,768 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:08:45,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:08:45,768 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:08:45,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:08:45,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:08:45,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:08:45,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:08:45,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:08:45,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:08:45,771 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:08:45,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:08:45,771 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:08:45,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:08:45,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:08:45,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:08:45,772 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:08:45,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:08:45,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:08:45,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:08:45,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:08:45,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:08:45,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:08:45,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:08:45,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:08:45,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:08:45,774 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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:08:46,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:08:46,223 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:08:46,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:08:46,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:08:46,230 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:08:46,231 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-09-24 19:08:46,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf823365d/e1a3401c87d14ff980328d87335e5a67/FLAG9e29725bc [2020-09-24 19:08:46,905 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:08:46,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-09-24 19:08:46,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf823365d/e1a3401c87d14ff980328d87335e5a67/FLAG9e29725bc [2020-09-24 19:08:47,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf823365d/e1a3401c87d14ff980328d87335e5a67 [2020-09-24 19:08:47,213 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:08:47,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:08:47,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:08:47,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:08:47,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:08:47,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:08:47" (1/1) ... [2020-09-24 19:08:47,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d49e308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:47, skipping insertion in model container [2020-09-24 19:08:47,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:08:47" (1/1) ... [2020-09-24 19:08:47,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:08:47,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:08:47,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:08:47,779 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:08:47,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:08:47,902 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:08:47,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:47 WrapperNode [2020-09-24 19:08:47,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:08:47,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:08:47,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:08:47,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:08:47,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:47" (1/1) ... [2020-09-24 19:08:47,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:47" (1/1) ... [2020-09-24 19:08:47,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:47" (1/1) ... [2020-09-24 19:08:47,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:47" (1/1) ... [2020-09-24 19:08:47,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:47" (1/1) ... [2020-09-24 19:08:47,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:47" (1/1) ... [2020-09-24 19:08:47,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:47" (1/1) ... [2020-09-24 19:08:48,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:08:48,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:08:48,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:08:48,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:08:48,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:08:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:08:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:08:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:08:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:08:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:08:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:08:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:08:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:08:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:08:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:08:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:08:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:08:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:08:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:08:48,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:08:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:08:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:08:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:08:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:08:48,105 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:08:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:08:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:08:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:08:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:08:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:08:48,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:08:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:08:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:08:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:08:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:08:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:08:48,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:08:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:08:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:08:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:08:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:08:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:08:48,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:08:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:08:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:08:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:08:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:08:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:08:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:08:48,109 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:08:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:08:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:08:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:08:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:08:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:08:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:08:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:08:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:08:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:08:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:08:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:08:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:08:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:08:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:08:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:08:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:08:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:08:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:08:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:08:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:08:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:08:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:08:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:08:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:08:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:08:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:08:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:08:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:08:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:08:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:08:48,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:08:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:08:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:08:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:08:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:08:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:08:48,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:08:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:08:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:08:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:08:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:08:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:08:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:08:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:08:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:08:49,234 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:08:49,234 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:08:49,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:08:49 BoogieIcfgContainer [2020-09-24 19:08:49,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:08:49,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:08:49,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:08:49,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:08:49,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:08:47" (1/3) ... [2020-09-24 19:08:49,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a38ebf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:08:49, skipping insertion in model container [2020-09-24 19:08:49,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:47" (2/3) ... [2020-09-24 19:08:49,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a38ebf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:08:49, skipping insertion in model container [2020-09-24 19:08:49,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:08:49" (3/3) ... [2020-09-24 19:08:49,250 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-09-24 19:08:49,262 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:08:49,273 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:08:49,297 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:08:49,332 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:08:49,332 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:08:49,333 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:08:49,333 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:08:49,333 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:08:49,333 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:08:49,333 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:08:49,333 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:08:49,363 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-24 19:08:49,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 19:08:49,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:49,384 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] [2020-09-24 19:08:49,385 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:49,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:49,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2007669194, now seen corresponding path program 1 times [2020-09-24 19:08:49,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:49,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907928127] [2020-09-24 19:08:49,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:49,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:50,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:50,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:50,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 19:08:50,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:08:50,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:08:50,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:50,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:50,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:08:50,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:50,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:08:51,196 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:51,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:51,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:51,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:51,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:51,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:51,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-24 19:08:51,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:51,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:51,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:51,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:51,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:51,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:51,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:51,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:51,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:51,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:51,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:51,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:51,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:51,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:51,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:51,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:51,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:51,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:51,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:51,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:51,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:51,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:51,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:51,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:51,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:51,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:51,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:51,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:51,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:51,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:51,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:51,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:51,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:51,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:51,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:51,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:51,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:51,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:51,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:51,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:51,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:51,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:08:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:51,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:51,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:51,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:51,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:51,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:51,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:51,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:51,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:51,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:08:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:51,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:51,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:51,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:51,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:51,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:08:51,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:51,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:51,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:51,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:51,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:51,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:08:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:51,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:51,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:51,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:51,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:51,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:51,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:51,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:51,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:51,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:51,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:51,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:51,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907928127] [2020-09-24 19:08:51,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:51,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:08:51,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370648032] [2020-09-24 19:08:51,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:08:51,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:51,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:08:51,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:08:51,604 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 3 states. [2020-09-24 19:08:52,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:52,879 INFO L93 Difference]: Finished difference Result 461 states and 548 transitions. [2020-09-24 19:08:52,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:08:52,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 19:08:52,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:52,902 INFO L225 Difference]: With dead ends: 461 [2020-09-24 19:08:52,902 INFO L226 Difference]: Without dead ends: 288 [2020-09-24 19:08:52,908 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 [2020-09-24 19:08:52,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-24 19:08:53,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 247. [2020-09-24 19:08:53,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-24 19:08:53,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 267 transitions. [2020-09-24 19:08:53,033 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 267 transitions. Word has length 153 [2020-09-24 19:08:53,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:53,039 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 267 transitions. [2020-09-24 19:08:53,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:08:53,040 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 267 transitions. [2020-09-24 19:08:53,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 19:08:53,053 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:53,054 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] [2020-09-24 19:08:53,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:08:53,055 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:53,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:53,056 INFO L82 PathProgramCache]: Analyzing trace with hash -986006503, now seen corresponding path program 1 times [2020-09-24 19:08:53,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:53,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475856379] [2020-09-24 19:08:53,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:53,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:53,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:54,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:54,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:08:54,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:08:54,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:08:54,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:54,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:54,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:08:54,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:08:54,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:54,565 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:54,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:54,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:54,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:54,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:54,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:54,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 19:08:54,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:54,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:54,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:54,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:54,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:54,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:54,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:54,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:54,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:54,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:54,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:54,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:54,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:54,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:54,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:54,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:54,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:54,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:54,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:54,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:54,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:54,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:54,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:54,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:54,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:54,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:54,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:54,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:54,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:54,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:54,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:54,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:54,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:54,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:54,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:54,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:54,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:54,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:54,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:54,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 19:08:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:54,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:54,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:54,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:54,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:54,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:54,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:54,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:54,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:54,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:08:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:54,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:54,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:54,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:54,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:54,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:54,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:54,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:54,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:54,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:54,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:54,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 19:08:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:54,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:54,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:54,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:54,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:54,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:08:54,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:54,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:54,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:54,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:54,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:54,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475856379] [2020-09-24 19:08:54,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:54,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:08:54,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002823041] [2020-09-24 19:08:54,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:08:54,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:54,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:08:54,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:08:54,811 INFO L87 Difference]: Start difference. First operand 247 states and 267 transitions. Second operand 4 states. [2020-09-24 19:08:55,434 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:08:56,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:56,306 INFO L93 Difference]: Finished difference Result 369 states and 413 transitions. [2020-09-24 19:08:56,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:08:56,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 19:08:56,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:56,316 INFO L225 Difference]: With dead ends: 369 [2020-09-24 19:08:56,316 INFO L226 Difference]: Without dead ends: 271 [2020-09-24 19:08:56,318 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 [2020-09-24 19:08:56,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-24 19:08:56,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 237. [2020-09-24 19:08:56,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-24 19:08:56,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 254 transitions. [2020-09-24 19:08:56,368 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 254 transitions. Word has length 154 [2020-09-24 19:08:56,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:56,369 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 254 transitions. [2020-09-24 19:08:56,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:08:56,369 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 254 transitions. [2020-09-24 19:08:56,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 19:08:56,371 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:56,372 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] [2020-09-24 19:08:56,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:08:56,372 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:56,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1560512259, now seen corresponding path program 1 times [2020-09-24 19:08:56,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:56,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290830139] [2020-09-24 19:08:56,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:56,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:57,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:57,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:57,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 19:08:57,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:08:57,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1048 [2020-09-24 19:08:57,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:57,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:08:57,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:08:57,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 19:08:57,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:57,756 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:57,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:57,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:58,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:58,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:58,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:58,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-24 19:08:58,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:58,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:08:58,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:58,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:58,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:58,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:58,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:58,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:58,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:58,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:58,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:58,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:58,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:58,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:58,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:58,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:58,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:58,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:58,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:58,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:58,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:58,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:58,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:58,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:58,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:58,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:58,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:58,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:58,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:08:58,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:58,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:58,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:58,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:58,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:58,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:58,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:58,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:58,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:58,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:58,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:58,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:58,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:58,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:08:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:58,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:58,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:58,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:58,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:58,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:58,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:58,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:58,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:58,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:58,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:58,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:08:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:58,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:58,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:58,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:58,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:58,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:58,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:58,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:58,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:58,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:58,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:58,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 19:08:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:58,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:58,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:58,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:58,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:58,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:58,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:58,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:58,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:58,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290830139] [2020-09-24 19:08:58,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:58,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:08:58,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438112972] [2020-09-24 19:08:58,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:08:58,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:58,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:08:58,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:08:58,252 INFO L87 Difference]: Start difference. First operand 237 states and 254 transitions. Second operand 4 states. [2020-09-24 19:08:58,698 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:00,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:00,072 INFO L93 Difference]: Finished difference Result 535 states and 607 transitions. [2020-09-24 19:09:00,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:09:00,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 19:09:00,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:00,078 INFO L225 Difference]: With dead ends: 535 [2020-09-24 19:09:00,078 INFO L226 Difference]: Without dead ends: 408 [2020-09-24 19:09:00,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:09:00,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-09-24 19:09:00,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 352. [2020-09-24 19:09:00,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-09-24 19:09:00,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 385 transitions. [2020-09-24 19:09:00,136 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 385 transitions. Word has length 163 [2020-09-24 19:09:00,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:00,137 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 385 transitions. [2020-09-24 19:09:00,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:09:00,137 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 385 transitions. [2020-09-24 19:09:00,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 19:09:00,139 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:00,140 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] [2020-09-24 19:09:00,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:09:00,140 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:00,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:00,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1484282150, now seen corresponding path program 1 times [2020-09-24 19:09:00,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:00,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931012101] [2020-09-24 19:09:00,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 19:09:01,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:09:01,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:09:01,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:09:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:09:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:01,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,539 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:01,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:01,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 19:09:01,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:01,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:01,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:01,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:01,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:01,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:01,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:01,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:01,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:01,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:01,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:01,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:01,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:01,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:01,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:01,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:09:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:09:01,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:09:01,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:09:01,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:09:01,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:09:01,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:01,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:09:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:01,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:01,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:09:01,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:09:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:01,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:01,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:01,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:09:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:01,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:01,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:01,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 19:09:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:01,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:01,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:01,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:01,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:01,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:01,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:01,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:01,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931012101] [2020-09-24 19:09:01,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:01,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:09:01,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594411694] [2020-09-24 19:09:01,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:09:01,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:01,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:09:01,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:09:01,786 INFO L87 Difference]: Start difference. First operand 352 states and 385 transitions. Second operand 6 states. [2020-09-24 19:09:02,215 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:03,771 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:04,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:04,347 INFO L93 Difference]: Finished difference Result 926 states and 1073 transitions. [2020-09-24 19:09:04,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:09:04,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-09-24 19:09:04,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:04,354 INFO L225 Difference]: With dead ends: 926 [2020-09-24 19:09:04,354 INFO L226 Difference]: Without dead ends: 684 [2020-09-24 19:09:04,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:09:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2020-09-24 19:09:04,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 591. [2020-09-24 19:09:04,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-09-24 19:09:04,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 650 transitions. [2020-09-24 19:09:04,438 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 650 transitions. Word has length 171 [2020-09-24 19:09:04,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:04,439 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 650 transitions. [2020-09-24 19:09:04,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:09:04,439 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 650 transitions. [2020-09-24 19:09:04,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 19:09:04,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:04,441 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] [2020-09-24 19:09:04,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:09:04,442 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:04,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:04,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1122738503, now seen corresponding path program 1 times [2020-09-24 19:09:04,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:04,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562545571] [2020-09-24 19:09:04,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:05,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:05,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 19:09:05,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:05,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-09-24 19:09:05,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:09:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 19:09:05,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 19:09:05,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:05,866 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:05,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:05,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:06,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:06,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:06,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:06,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-24 19:09:06,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:06,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 19:09:06,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:06,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:06,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:06,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:06,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:06,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:06,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:06,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:06,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:06,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:06,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:09:06,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:06,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:06,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:06,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:06,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:06,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:06,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:06,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:06,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:06,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:06,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:09:06,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:06,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:06,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:06,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:06,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:06,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:06,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:09:06,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:06,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:06,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:06,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:06,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:06,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:06,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:06,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:06,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:06,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:06,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:06,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:06,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:06,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:06,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:09:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:06,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:09:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:06,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:06,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:06,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:09:06,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:06,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:06,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:06,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:06,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:06,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:09:06,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:06,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 19:09:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:06,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:06,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:06,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:06,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:06,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:06,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:06,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:06,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 19:09:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:06,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:06,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:06,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:06,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:06,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:09:06,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:06,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:06,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:06,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 19:09:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:06,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:06,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:06,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:06,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:06,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:06,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:06,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:06,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:06,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:06,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:06,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:06,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562545571] [2020-09-24 19:09:06,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:06,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:09:06,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140661514] [2020-09-24 19:09:06,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:09:06,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:06,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:09:06,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:09:06,428 INFO L87 Difference]: Start difference. First operand 591 states and 650 transitions. Second operand 9 states. [2020-09-24 19:09:06,901 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:08,308 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:08,619 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:08,977 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:09,321 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:09,649 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:09,972 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:10,261 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:11,218 INFO L93 Difference]: Finished difference Result 1496 states and 1738 transitions. [2020-09-24 19:09:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:09:11,219 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 19:09:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:11,227 INFO L225 Difference]: With dead ends: 1496 [2020-09-24 19:09:11,227 INFO L226 Difference]: Without dead ends: 1015 [2020-09-24 19:09:11,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:09:11,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-09-24 19:09:11,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 935. [2020-09-24 19:09:11,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 935 states. [2020-09-24 19:09:11,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1044 transitions. [2020-09-24 19:09:11,343 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1044 transitions. Word has length 172 [2020-09-24 19:09:11,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:11,344 INFO L479 AbstractCegarLoop]: Abstraction has 935 states and 1044 transitions. [2020-09-24 19:09:11,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:09:11,344 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1044 transitions. [2020-09-24 19:09:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 19:09:11,347 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:11,347 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] [2020-09-24 19:09:11,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:09:11,348 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:11,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:11,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1199080031, now seen corresponding path program 1 times [2020-09-24 19:09:11,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:11,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352263169] [2020-09-24 19:09:11,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:09:11,450 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:09:11,450 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:09:11,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:09:11,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:09:11 BoogieIcfgContainer [2020-09-24 19:09:11,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:09:11,484 INFO L168 Benchmark]: Toolchain (without parser) took 24269.09 ms. Allocated memory was 141.0 MB in the beginning and 640.2 MB in the end (delta: 499.1 MB). Free memory was 102.0 MB in the beginning and 591.5 MB in the end (delta: -489.5 MB). Peak memory consumption was 458.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:09:11,485 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-24 19:09:11,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.06 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 173.2 MB in the end (delta: -71.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:09:11,486 INFO L168 Benchmark]: Boogie Preprocessor took 97.29 ms. Allocated memory is still 205.0 MB. Free memory was 173.2 MB in the beginning and 168.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:09:11,487 INFO L168 Benchmark]: RCFGBuilder took 1239.93 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 168.4 MB in the beginning and 176.1 MB in the end (delta: -7.7 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:09:11,488 INFO L168 Benchmark]: TraceAbstraction took 22239.27 ms. Allocated memory was 237.5 MB in the beginning and 640.2 MB in the end (delta: 402.7 MB). Free memory was 174.7 MB in the beginning and 591.5 MB in the end (delta: -416.8 MB). Peak memory consumption was 434.4 MB. Max. memory is 7.1 GB. [2020-09-24 19:09:11,492 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 684.06 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 173.2 MB in the end (delta: -71.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.29 ms. Allocated memory is still 205.0 MB. Free memory was 173.2 MB in the beginning and 168.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1239.93 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 168.4 MB in the beginning and 176.1 MB in the end (delta: -7.7 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22239.27 ms. Allocated memory was 237.5 MB in the beginning and 640.2 MB in the end (delta: 402.7 MB). Free memory was 174.7 MB in the beginning and 591.5 MB in the end (delta: -416.8 MB). Peak memory consumption was 434.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1178 SDtfs, 1491 SDslu, 1048 SDs, 0 SdLazy, 2447 SolverSat, 448 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=935occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 304 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 990 NumberOfCodeBlocks, 990 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 808 ConstructedInterpolants, 0 QuantifiedInterpolants, 319462 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...