/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:45:05,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:45:05,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:45:05,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:45:05,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:45:05,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:45:05,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:45:05,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:45:05,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:45:05,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:45:05,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:45:05,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:45:05,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:45:05,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:45:05,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:45:05,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:45:05,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:45:05,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:45:05,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:45:05,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:45:05,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:45:05,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:45:05,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:45:05,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:45:05,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:45:05,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:45:05,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:45:05,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:45:05,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:45:05,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:45:05,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:45:05,771 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:45:05,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:45:05,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:45:05,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:45:05,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:45:05,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:45:05,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:45:05,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:45:05,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:45:05,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:45:05,784 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 01:45:05,824 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:45:05,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:45:05,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:45:05,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:45:05,827 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:45:05,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:45:05,828 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:45:05,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:45:05,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:45:05,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:45:05,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:45:05,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:45:05,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:45:05,830 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:45:05,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:45:05,831 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:45:05,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:45:05,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:45:05,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:45:05,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:45:05,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:45:05,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:45:05,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:45:05,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:45:05,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:45:05,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:45:05,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:45:05,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:45:05,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:45:05,834 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:45:06,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:45:06,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:45:06,322 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:45:06,325 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:45:06,325 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:45:06,327 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-25 01:45:06,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99f8b084e/9f289da3c2fa41c28cf169af8b429630/FLAGf54a7eb7c [2020-09-25 01:45:07,037 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:45:07,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-25 01:45:07,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99f8b084e/9f289da3c2fa41c28cf169af8b429630/FLAGf54a7eb7c [2020-09-25 01:45:07,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99f8b084e/9f289da3c2fa41c28cf169af8b429630 [2020-09-25 01:45:07,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:45:07,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:45:07,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:45:07,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:45:07,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:45:07,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:45:07" (1/1) ... [2020-09-25 01:45:07,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f9cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:07, skipping insertion in model container [2020-09-25 01:45:07,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:45:07" (1/1) ... [2020-09-25 01:45:07,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:45:07,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:45:07,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:45:07,861 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:45:07,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:45:08,012 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:45:08,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:08 WrapperNode [2020-09-25 01:45:08,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:45:08,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:45:08,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:45:08,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:45:08,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:08" (1/1) ... [2020-09-25 01:45:08,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:08" (1/1) ... [2020-09-25 01:45:08,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:08" (1/1) ... [2020-09-25 01:45:08,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:08" (1/1) ... [2020-09-25 01:45:08,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:08" (1/1) ... [2020-09-25 01:45:08,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:08" (1/1) ... [2020-09-25 01:45:08,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:08" (1/1) ... [2020-09-25 01:45:08,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:45:08,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:45:08,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:45:08,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:45:08,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:08" (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 01:45:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:45:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:45:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:45:08,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:45:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:45:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:45:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:45:08,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:45:08,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:45:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:45:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:45:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:45:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:45:08,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 01:45:08,257 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:45:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:45:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:45:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:45:08,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:45:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:45:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:45:08,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:45:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:45:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:45:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:45:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:45:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:45:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:45:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:45:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:45:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:45:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:45:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:45:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:45:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:45:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:45:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:45:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:45:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:45:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:45:08,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:45:08,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:45:08,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:45:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:45:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:45:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:45:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:45:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:45:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:45:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:45:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:45:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:45:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:45:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:45:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:45:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:45:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:45:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:45:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:45:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:45:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:45:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:45:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:45:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:45:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:45:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:45:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:45:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:45:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:45:08,272 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:45:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:45:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:45:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:45:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:45:08,275 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:45:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:45:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:45:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:45:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:45:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:45:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:45:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:45:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:45:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:45:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:45:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 01:45:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:45:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:45:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:45:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:45:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:45:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:45:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:45:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:45:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:45:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:45:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:45:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:45:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:45:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:45:09,441 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:45:09,441 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:45:09,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:45:09 BoogieIcfgContainer [2020-09-25 01:45:09,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:45:09,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:45:09,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:45:09,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:45:09,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:45:07" (1/3) ... [2020-09-25 01:45:09,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c88f8f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:45:09, skipping insertion in model container [2020-09-25 01:45:09,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:08" (2/3) ... [2020-09-25 01:45:09,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c88f8f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:45:09, skipping insertion in model container [2020-09-25 01:45:09,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:45:09" (3/3) ... [2020-09-25 01:45:09,459 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-09-25 01:45:09,470 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:45:09,482 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:45:09,505 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:45:09,538 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:45:09,539 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:45:09,539 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:45:09,539 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:45:09,539 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:45:09,539 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:45:09,540 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:45:09,540 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:45:09,570 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states. [2020-09-25 01:45:09,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:45:09,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:09,592 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 01:45:09,592 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:09,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:09,601 INFO L82 PathProgramCache]: Analyzing trace with hash 826882234, now seen corresponding path program 1 times [2020-09-25 01:45:09,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:09,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772188928] [2020-09-25 01:45:09,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:10,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:10,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:11,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:12,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:14,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:15,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:15,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:45:15,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:45:15,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-09-25 01:45:15,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:15,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:45:15,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:15,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 01:45:15,468 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:15,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:15,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:15,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:15,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:15,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:15,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 01:45:15,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:15,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:15,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:15,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:15,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:15,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:15,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:15,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:45:15,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:15,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:15,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:15,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:15,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:15,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:15,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:15,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:15,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:15,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:15,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:15,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:15,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:15,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:45:15,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:15,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:15,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:15,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:15,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:15,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:15,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:15,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:15,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:15,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:15,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:15,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:15,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:15,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:45:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:15,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:15,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:15,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:15,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:15,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:15,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:15,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:15,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:45:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:15,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:15,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:15,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:15,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:15,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:15,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:15,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:15,858 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 01:45:15,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772188928] [2020-09-25 01:45:15,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:15,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:45:15,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624482666] [2020-09-25 01:45:15,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:45:15,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:15,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:45:15,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:45:15,899 INFO L87 Difference]: Start difference. First operand 342 states. Second operand 3 states. [2020-09-25 01:45:17,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:17,562 INFO L93 Difference]: Finished difference Result 554 states and 662 transitions. [2020-09-25 01:45:17,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:45:17,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:45:17,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:17,602 INFO L225 Difference]: With dead ends: 554 [2020-09-25 01:45:17,602 INFO L226 Difference]: Without dead ends: 337 [2020-09-25 01:45:17,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:45:17,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-09-25 01:45:17,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 291. [2020-09-25 01:45:17,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-09-25 01:45:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 320 transitions. [2020-09-25 01:45:17,752 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 320 transitions. Word has length 142 [2020-09-25 01:45:17,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:17,758 INFO L479 AbstractCegarLoop]: Abstraction has 291 states and 320 transitions. [2020-09-25 01:45:17,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:45:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 320 transitions. [2020-09-25 01:45:17,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:45:17,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:17,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:45:17,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:45:17,765 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:17,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:17,765 INFO L82 PathProgramCache]: Analyzing trace with hash -820599246, now seen corresponding path program 1 times [2020-09-25 01:45:17,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:17,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717361632] [2020-09-25 01:45:17,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:17,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:17,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:19,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:20,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:21,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:22,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:22,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:45:22,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:45:22,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 01:45:22,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:45:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:45:22,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:23,154 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:23,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:23,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:23,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:23,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:23,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:23,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 01:45:23,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:23,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:23,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:23,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:23,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:23,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:23,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:23,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:23,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:23,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:23,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:23,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:23,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:23,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:23,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:23,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:23,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:23,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:23,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:23,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:23,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:23,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:23,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:23,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:23,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:23,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:23,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:23,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:23,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:23,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:23,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:23,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:23,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:45:23,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:23,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:23,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:23,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:23,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:23,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:23,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:23,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:23,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:23,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:23,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:23,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:23,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:23,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:45:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:23,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:23,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:23,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:23,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:23,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:23,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:23,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:23,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:23,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:23,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:45:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:23,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:23,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:23,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:23,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:23,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:23,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:23,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:23,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:23,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:23,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:23,387 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 01:45:23,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717361632] [2020-09-25 01:45:23,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:23,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:45:23,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158253092] [2020-09-25 01:45:23,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:45:23,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:23,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:45:23,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:45:23,393 INFO L87 Difference]: Start difference. First operand 291 states and 320 transitions. Second operand 4 states. [2020-09-25 01:45:24,087 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:25,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:25,365 INFO L93 Difference]: Finished difference Result 461 states and 525 transitions. [2020-09-25 01:45:25,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:45:25,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:45:25,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:25,379 INFO L225 Difference]: With dead ends: 461 [2020-09-25 01:45:25,379 INFO L226 Difference]: Without dead ends: 320 [2020-09-25 01:45:25,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:45:25,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-09-25 01:45:25,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 281. [2020-09-25 01:45:25,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-09-25 01:45:25,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 307 transitions. [2020-09-25 01:45:25,436 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 307 transitions. Word has length 143 [2020-09-25 01:45:25,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:25,437 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 307 transitions. [2020-09-25 01:45:25,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:45:25,437 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 307 transitions. [2020-09-25 01:45:25,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 01:45:25,440 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:25,440 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] [2020-09-25 01:45:25,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:45:25,441 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:25,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:25,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1576489327, now seen corresponding path program 1 times [2020-09-25 01:45:25,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:25,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143338473] [2020-09-25 01:45:25,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:25,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:25,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:25,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:27,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:30,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:30,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:45:30,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:45:30,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 01:45:30,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:45:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:30,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:30,818 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:30,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:30,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:30,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:30,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:30,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:30,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 01:45:30,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:30,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:30,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:30,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:30,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:30,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:30,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:30,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:30,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:30,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:30,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:30,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:30,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:30,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:30,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:30,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:30,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:30,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:30,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:30,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:30,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:30,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:30,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:30,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:30,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:30,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:30,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:30,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:30,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:30,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:30,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:30,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:30,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:30,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:30,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:30,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:30,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:30,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:30,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:30,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:30,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:30,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:30,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:30,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:30,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:45:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:30,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:30,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:30,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:45:30,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:30,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:30,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:30,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:30,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:30,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:45:30,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:30,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:45:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:30,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:31,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:31,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:31,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:31,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:31,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:31,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:31,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:31,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:31,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:31,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:45:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:31,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:31,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:31,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:31,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:31,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:31,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:31,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:31,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:31,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:31,033 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 01:45:31,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143338473] [2020-09-25 01:45:31,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:31,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:45:31,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309432043] [2020-09-25 01:45:31,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:45:31,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:31,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:45:31,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:45:31,039 INFO L87 Difference]: Start difference. First operand 281 states and 307 transitions. Second operand 5 states. [2020-09-25 01:45:31,713 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:45:34,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:34,234 INFO L93 Difference]: Finished difference Result 697 states and 814 transitions. [2020-09-25 01:45:34,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:45:34,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 01:45:34,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:34,241 INFO L225 Difference]: With dead ends: 697 [2020-09-25 01:45:34,242 INFO L226 Difference]: Without dead ends: 526 [2020-09-25 01:45:34,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:45:34,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-25 01:45:34,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 442. [2020-09-25 01:45:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-09-25 01:45:34,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 495 transitions. [2020-09-25 01:45:34,324 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 495 transitions. Word has length 156 [2020-09-25 01:45:34,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:34,325 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 495 transitions. [2020-09-25 01:45:34,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:45:34,325 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 495 transitions. [2020-09-25 01:45:34,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:45:34,328 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:34,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:45:34,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:45:34,329 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:34,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:34,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1953483698, now seen corresponding path program 1 times [2020-09-25 01:45:34,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:34,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391142648] [2020-09-25 01:45:34,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:34,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:35,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:36,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:39,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:39,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 01:45:39,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:45:39,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 01:45:39,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:39,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:45:39,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 01:45:39,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:45:39,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:39,737 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:39,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:39,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:39,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:39,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:39,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:39,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 01:45:39,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:39,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:39,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:39,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:39,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:39,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:39,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:39,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:39,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:39,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:39,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:39,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:39,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:39,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:39,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:39,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:39,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:39,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:39,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:39,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:39,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:39,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:39,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:39,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:39,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:39,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:39,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:39,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:39,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:39,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:39,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:39,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:39,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:45:39,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:39,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:39,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:39,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:39,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:39,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:39,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:39,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:39,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:39,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:39,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:39,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:39,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 01:45:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:39,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:39,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:39,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:45:39,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:39,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:39,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:39,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:39,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 01:45:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:39,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:39,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:39,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:39,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:39,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:39,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:39,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:39,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:39,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:45:39,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:39,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 01:45:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:39,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:39,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:39,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:39,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:39,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:45:39,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:39,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:45:39,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:40,054 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 01:45:40,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391142648] [2020-09-25 01:45:40,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:40,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:45:40,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514852254] [2020-09-25 01:45:40,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:45:40,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:40,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:45:40,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:45:40,058 INFO L87 Difference]: Start difference. First operand 442 states and 495 transitions. Second operand 9 states. [2020-09-25 01:45:40,513 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:45:41,849 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:42,447 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 01:45:42,809 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:43,151 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:45:43,466 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:45:44,163 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:45:44,479 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:45:44,826 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:46,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:46,017 INFO L93 Difference]: Finished difference Result 1045 states and 1259 transitions. [2020-09-25 01:45:46,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:45:46,018 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 01:45:46,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:46,028 INFO L225 Difference]: With dead ends: 1045 [2020-09-25 01:45:46,028 INFO L226 Difference]: Without dead ends: 713 [2020-09-25 01:45:46,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 01:45:46,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-09-25 01:45:46,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 636. [2020-09-25 01:45:46,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-09-25 01:45:46,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 728 transitions. [2020-09-25 01:45:46,134 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 728 transitions. Word has length 161 [2020-09-25 01:45:46,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:46,135 INFO L479 AbstractCegarLoop]: Abstraction has 636 states and 728 transitions. [2020-09-25 01:45:46,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:45:46,135 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 728 transitions. [2020-09-25 01:45:46,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 01:45:46,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:46,139 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] [2020-09-25 01:45:46,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:45:46,139 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:46,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:46,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1255055236, now seen corresponding path program 1 times [2020-09-25 01:45:46,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:46,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855559845] [2020-09-25 01:45:46,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:46,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:46,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:50,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:50,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 01:45:50,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:45:50,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4330 [2020-09-25 01:45:50,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:50,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-25 01:45:50,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:50,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:50,828 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:50,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:50,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:50,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:50,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:50,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:50,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 01:45:50,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:50,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:50,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:50,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:50,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:50,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:50,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:50,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:50,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:50,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:50,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:50,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:50,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:50,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:50,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:50,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:50,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:50,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:50,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:50,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:50,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:50,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:50,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:50,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:50,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:50,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:50,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:50,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:50,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:50,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:50,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:50,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:50,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:50,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:50,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:50,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:50,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:50,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:50,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:50,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:50,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:50,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:50,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:50,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:50,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:45:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:50,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:50,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:50,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:45:50,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:50,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:50,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:50,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:50,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:45:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:51,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:51,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:51,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 01:45:51,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:51,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 01:45:51,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:51,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:51,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 01:45:51,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:51,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:51,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:51,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:51,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:51,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:45:51,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:51,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 01:45:51,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:51,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 01:45:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:51,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:51,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:51,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:51,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:51,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:45:51,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:51,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 01:45:51,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:51,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:51,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:45:51,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:51,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:51,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:51,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:51,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:51,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:45:51,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:51,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 01:45:51,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:51,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:51,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:45:51,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:51,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:51,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:45:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:51,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:51,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:51,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:45:51,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:51,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:45:51,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:51,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:45:51,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:51,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:45:51,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:51,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:45:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:51,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:51,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:51,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:45:51,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:51,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:51,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:45:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:51,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:51,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 01:45:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:51,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:51,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:51,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:51,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:51,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:51,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:51,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:51,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:51,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:51,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:51,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 01:45:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:51,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:51,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:51,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:51,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:51,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:51,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:51,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:51,344 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 01:45:51,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855559845] [2020-09-25 01:45:51,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:51,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:45:51,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574847691] [2020-09-25 01:45:51,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:45:51,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:51,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:45:51,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:45:51,347 INFO L87 Difference]: Start difference. First operand 636 states and 728 transitions. Second operand 9 states. [2020-09-25 01:45:52,723 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:53,031 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:45:53,367 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:53,722 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:45:54,033 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188