/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_spec4_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:22:21,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:22:21,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:22:21,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:22:21,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:22:21,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:22:21,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:22:21,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:22:21,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:22:21,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:22:21,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:22:21,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:22:21,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:22:21,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:22:21,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:22:21,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:22:21,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:22:21,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:22:21,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:22:21,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:22:21,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:22:21,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:22:21,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:22:21,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:22:21,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:22:21,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:22:21,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:22:21,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:22:21,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:22:21,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:22:21,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:22:21,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:22:21,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:22:21,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:22:21,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:22:21,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:22:21,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:22:21,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:22:21,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:22:21,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:22:21,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:22:21,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:22:21,156 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:22:21,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:22:21,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:22:21,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:22:21,159 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:22:21,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:22:21,160 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:22:21,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:22:21,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:22:21,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:22:21,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:22:21,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:22:21,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:22:21,162 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:22:21,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:22:21,163 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:22:21,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:22:21,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:22:21,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:22:21,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:22:21,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:22:21,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:22:21,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:22:21,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:22:21,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:22:21,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:22:21,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:22:21,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:22:21,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:22:21,166 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:22:21,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:22:21,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:22:21,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:22:21,641 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:22:21,642 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:22:21,643 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-25 14:22:21,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7190b348/eaa09b4e03224157b5a34cd7da5c8bac/FLAG467c93152 [2020-09-25 14:22:22,389 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:22:22,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-25 14:22:22,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7190b348/eaa09b4e03224157b5a34cd7da5c8bac/FLAG467c93152 [2020-09-25 14:22:22,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7190b348/eaa09b4e03224157b5a34cd7da5c8bac [2020-09-25 14:22:22,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:22:22,608 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:22:22,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:22:22,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:22:22,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:22:22,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:22:22" (1/1) ... [2020-09-25 14:22:22,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef00bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:22, skipping insertion in model container [2020-09-25 14:22:22,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:22:22" (1/1) ... [2020-09-25 14:22:22,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:22:22,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:22:23,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:22:23,097 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:22:23,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:22:23,423 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:22:23,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:23 WrapperNode [2020-09-25 14:22:23,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:22:23,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:22:23,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:22:23,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:22:23,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:23" (1/1) ... [2020-09-25 14:22:23,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:23" (1/1) ... [2020-09-25 14:22:23,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:23" (1/1) ... [2020-09-25 14:22:23,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:23" (1/1) ... [2020-09-25 14:22:23,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:23" (1/1) ... [2020-09-25 14:22:23,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:23" (1/1) ... [2020-09-25 14:22:23,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:23" (1/1) ... [2020-09-25 14:22:23,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:22:23,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:22:23,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:22:23,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:22:23,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:22:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:22:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:22:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:22:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:22:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:22:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:22:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:22:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:22:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:22:23,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:22:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:22:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:22:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:22:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:22:23,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:22:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:22:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:22:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:22:23,629 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:22:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:22:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:22:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:22:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:22:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:22:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:22:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:22:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:22:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:22:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:22:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:22:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:22:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:22:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:22:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:22:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:22:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:22:23,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:22:23,633 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 14:22:23,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:22:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:22:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:22:23,633 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:22:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:22:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:22:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:22:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:22:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:22:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:22:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:22:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:22:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:22:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:22:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:22:23,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:22:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:22:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:22:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:22:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:22:23,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:22:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:22:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:22:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:22:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:22:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:22:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:22:23,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:22:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:22:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:22:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:22:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:22:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:22:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:22:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:22:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:22:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:22:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:22:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:22:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:22:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:22:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:22:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:22:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 14:22:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:22:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:22:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:22:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:22:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:22:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 14:22:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:22:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:22:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:22:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:22:24,801 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:22:24,802 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:22:24,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:22:24 BoogieIcfgContainer [2020-09-25 14:22:24,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:22:24,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:22:24,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:22:24,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:22:24,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:22:22" (1/3) ... [2020-09-25 14:22:24,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f75eb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:22:24, skipping insertion in model container [2020-09-25 14:22:24,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:23" (2/3) ... [2020-09-25 14:22:24,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f75eb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:22:24, skipping insertion in model container [2020-09-25 14:22:24,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:22:24" (3/3) ... [2020-09-25 14:22:24,819 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2020-09-25 14:22:24,831 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:22:24,843 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:22:24,866 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:22:24,902 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:22:24,903 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:22:24,903 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:22:24,903 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:22:24,903 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:22:24,903 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:22:24,903 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:22:24,904 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:22:24,937 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 14:22:24,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:22:24,956 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:24,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:22:24,958 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:24,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:24,967 INFO L82 PathProgramCache]: Analyzing trace with hash -66701350, now seen corresponding path program 1 times [2020-09-25 14:22:24,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:24,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308210697] [2020-09-25 14:22:24,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:25,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:25,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:27,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:28,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:30,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:30,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:22:30,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:22:30,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 14:22:30,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:30,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:22:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:22:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:22:30,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 14:22:30,905 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:30,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:22:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:31,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:31,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:31,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:22:31,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:31,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-09-25 14:22:31,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:31,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:31,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:31,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:31,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:22:31,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:31,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:22:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:31,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:31,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:31,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:31,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:31,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:22:31,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:31,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:31,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:31,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:31,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:22:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:31,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:31,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:31,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:31,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:31,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:22:31,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:31,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:31,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:31,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:31,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:31,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:31,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:22:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:31,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:31,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:31,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:31,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:31,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:22:31,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:31,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:31,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:22:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:31,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:31,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:31,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:31,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:31,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:22:31,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:31,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:31,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:31,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:22:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:31,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:31,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:31,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:31,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:31,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:31,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:31,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:31,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:31,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:31,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:31,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:31,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:22:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:31,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:31,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:31,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:31,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:31,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:31,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:31,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:31,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:31,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:31,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:31,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:22:31,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308210697] [2020-09-25 14:22:31,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:22:31,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:22:31,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999588562] [2020-09-25 14:22:31,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:22:31,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:22:31,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:22:31,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:22:31,513 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 5 states. [2020-09-25 14:22:32,263 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:22:33,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:33,331 INFO L93 Difference]: Finished difference Result 474 states and 559 transitions. [2020-09-25 14:22:33,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:22:33,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 14:22:33,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:33,354 INFO L225 Difference]: With dead ends: 474 [2020-09-25 14:22:33,355 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 14:22:33,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:22:33,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 14:22:33,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 253. [2020-09-25 14:22:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 14:22:33,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 271 transitions. [2020-09-25 14:22:33,502 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 271 transitions. Word has length 142 [2020-09-25 14:22:33,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:33,504 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 271 transitions. [2020-09-25 14:22:33,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:22:33,504 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 271 transitions. [2020-09-25 14:22:33,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 14:22:33,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:33,510 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] [2020-09-25 14:22:33,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:22:33,510 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:33,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:33,511 INFO L82 PathProgramCache]: Analyzing trace with hash -792834471, now seen corresponding path program 1 times [2020-09-25 14:22:33,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:33,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208160914] [2020-09-25 14:22:33,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:33,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:33,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:33,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:37,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:38,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:38,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:22:38,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:22:38,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 14:22:38,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:38,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:38,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:22:38,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:22:38,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 14:22:38,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,016 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:39,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:22:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:22:39,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 14:22:39,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:39,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:22:39,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:22:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:39,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:39,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:39,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:22:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:39,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:39,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:39,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:22:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:39,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:22:39,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:39,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:22:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:39,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:39,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:39,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:39,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:22:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:22:39,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:22:39,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:22:39,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:22:39,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:22:39,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:39,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:39,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:39,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:39,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:22:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:39,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:39,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:22:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:39,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:39,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:39,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:22:39,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208160914] [2020-09-25 14:22:39,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:22:39,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:22:39,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086062811] [2020-09-25 14:22:39,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:22:39,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:22:39,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:22:39,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:22:39,486 INFO L87 Difference]: Start difference. First operand 253 states and 271 transitions. Second operand 7 states. [2020-09-25 14:22:40,049 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:22:41,598 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:42,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:42,592 INFO L93 Difference]: Finished difference Result 588 states and 691 transitions. [2020-09-25 14:22:42,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:22:42,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-09-25 14:22:42,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:42,601 INFO L225 Difference]: With dead ends: 588 [2020-09-25 14:22:42,601 INFO L226 Difference]: Without dead ends: 445 [2020-09-25 14:22:42,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:22:42,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-09-25 14:22:42,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 371. [2020-09-25 14:22:42,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-25 14:22:42,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 409 transitions. [2020-09-25 14:22:42,675 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 409 transitions. Word has length 151 [2020-09-25 14:22:42,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:42,676 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 409 transitions. [2020-09-25 14:22:42,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:22:42,676 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 409 transitions. [2020-09-25 14:22:42,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 14:22:42,681 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:42,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:22:42,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:22:42,682 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:42,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:42,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1786267109, now seen corresponding path program 1 times [2020-09-25 14:22:42,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:42,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279155075] [2020-09-25 14:22:42,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:42,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:43,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:43,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:47,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:47,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-25 14:22:47,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:22:47,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:22:47,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:47,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:22:47,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 14:22:47,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 14:22:47,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,086 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:48,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:22:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:22:48,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:48,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 14:22:48,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:48,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:22:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:48,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:48,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:22:48,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:48,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:48,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:48,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:22:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:48,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:48,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:22:48,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:48,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:22:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:48,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:48,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:48,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:48,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:48,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:22:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:48,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:48,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:22:48,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:48,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:48,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:48,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 14:22:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:22:48,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:48,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:48,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:48,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:48,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 14:22:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:22:48,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:22:48,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 14:22:48,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:22:48,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:22:48,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:22:48,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:22:48,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:48,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 14:22:48,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:48,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:48,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 14:22:48,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:22:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:22:48,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:48,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:22:48,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:48,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:48,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:22:48,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:22:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:48,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:48,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:48,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:48,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:48,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:48,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 14:22:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:48,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:48,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:22:48,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:48,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 14:22:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:48,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:48,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:48,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:48,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:48,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:22:48,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:48,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:22:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:48,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:22:48,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279155075] [2020-09-25 14:22:48,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:22:48,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:22:48,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292913233] [2020-09-25 14:22:48,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:22:48,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:22:48,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:22:48,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:22:48,585 INFO L87 Difference]: Start difference. First operand 371 states and 409 transitions. Second operand 10 states. [2020-09-25 14:22:49,070 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:50,585 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:50,957 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:22:51,329 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:51,696 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:22:52,022 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:22:52,469 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:22:52,797 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:53,154 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:54,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:54,483 INFO L93 Difference]: Finished difference Result 517 states and 621 transitions. [2020-09-25 14:22:54,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 14:22:54,484 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 188 [2020-09-25 14:22:54,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:54,491 INFO L225 Difference]: With dead ends: 517 [2020-09-25 14:22:54,491 INFO L226 Difference]: Without dead ends: 514 [2020-09-25 14:22:54,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 14:22:54,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-09-25 14:22:54,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 371. [2020-09-25 14:22:54,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-25 14:22:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 408 transitions. [2020-09-25 14:22:54,560 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 408 transitions. Word has length 188 [2020-09-25 14:22:54,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:54,561 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 408 transitions. [2020-09-25 14:22:54,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:22:54,561 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 408 transitions. [2020-09-25 14:22:54,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 14:22:54,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:54,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:22:54,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:22:54,567 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:54,568 INFO L82 PathProgramCache]: Analyzing trace with hash 342460363, now seen corresponding path program 1 times [2020-09-25 14:22:54,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:54,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431326422] [2020-09-25 14:22:54,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:54,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:55,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:59,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:59,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-25 14:22:59,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:22:59,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:22:59,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:59,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:22:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 14:22:59,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-25 14:22:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:00,022 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:23:00,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:23:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:23:00,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 14:23:00,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:23:00,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:23:00,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:23:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:00,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:23:00,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:23:00,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:00,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:23:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:00,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:23:00,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:23:00,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:00,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:23:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:00,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:23:00,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:23:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:23:00,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:23:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:23:00,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:23:00,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:23:00,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:00,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 14:23:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:23:00,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:23:00,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:00,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:23:00,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:23:00,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 14:23:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 14:23:00,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:23:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 14:23:00,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:23:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:23:00,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:00,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:23:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:23:00,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:23:00,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:00,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:00,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:00,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:23:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:23:00,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:23:00,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:00,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:00,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:23:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 14:23:00,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:23:00,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:00,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:00,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:00,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:23:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:23:00,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:23:00,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:00,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:23:00,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:23:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:00,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:23:00,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:00,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:00,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:23:00,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 14:23:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:23:00,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:23:00,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:00,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:23:00,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 14:23:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:00,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:23:00,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:23:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:23:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:23:00,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:23:00,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 14:23:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:00,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:00,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:23:00,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:23:00,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:23:00,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:23:00,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:23:00,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:23:00,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:23:00,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:23:00,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:23:00,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:23:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:23:00,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431326422] [2020-09-25 14:23:00,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:23:00,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:23:00,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608029681] [2020-09-25 14:23:00,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:23:00,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:23:00,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:23:00,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:23:00,952 INFO L87 Difference]: Start difference. First operand 371 states and 408 transitions. Second operand 11 states. [2020-09-25 14:23:01,691 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:23:03,456 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:23:04,069 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 193 [2020-09-25 14:23:04,406 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:23:04,748 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:23:05,061 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:23:05,747 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:23:06,045 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 14:23:06,313 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:23:08,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:23:08,389 INFO L93 Difference]: Finished difference Result 1016 states and 1291 transitions. [2020-09-25 14:23:08,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 14:23:08,390 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-09-25 14:23:08,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:23:08,401 INFO L225 Difference]: With dead ends: 1016 [2020-09-25 14:23:08,401 INFO L226 Difference]: Without dead ends: 755 [2020-09-25 14:23:08,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-25 14:23:08,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2020-09-25 14:23:08,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 572. [2020-09-25 14:23:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-09-25 14:23:08,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 665 transitions. [2020-09-25 14:23:08,544 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 665 transitions. Word has length 211 [2020-09-25 14:23:08,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:23:08,545 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 665 transitions. [2020-09-25 14:23:08,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:23:08,546 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 665 transitions. [2020-09-25 14:23:08,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-25 14:23:08,556 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:23:08,557 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:23:08,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:23:08,558 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:23:08,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:23:08,558 INFO L82 PathProgramCache]: Analyzing trace with hash -990661249, now seen corresponding path program 1 times [2020-09-25 14:23:08,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:23:08,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347730224] [2020-09-25 14:23:08,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:23:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:23:08,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:08,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:23:09,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking...