/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=WIDEST --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_spec5_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:04:44,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:04:44,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:04:44,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:04:44,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:04:44,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:04:44,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:04:44,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:04:44,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:04:44,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:04:44,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:04:44,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:04:44,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:04:44,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:04:44,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:04:44,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:04:44,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:04:44,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:04:44,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:04:44,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:04:44,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:04:44,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:04:44,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:04:44,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:04:44,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:04:44,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:04:44,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:04:44,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:04:44,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:04:44,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:04:44,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:04:44,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:04:44,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:04:44,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:04:44,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:04:44,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:04:44,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:04:44,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:04:44,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:04:44,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:04:44,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:04:44,754 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 03:04:44,779 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:04:44,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:04:44,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:04:44,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:04:44,781 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:04:44,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:04:44,781 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:04:44,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:04:44,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:04:44,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:04:44,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:04:44,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:04:44,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:04:44,783 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:04:44,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:04:44,783 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:04:44,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:04:44,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:04:44,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:04:44,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:04:44,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:04:44,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:04:44,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:04:44,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:04:44,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:04:44,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:04:44,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:04:44,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:04:44,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:04:44,786 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:04:45,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:04:45,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:04:45,289 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:04:45,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:04:45,291 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:04:45,292 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2020-09-25 03:04:45,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/069bf76e6/9307e0d40ce8444e910739b1d852da27/FLAG5ea7d1faf [2020-09-25 03:04:45,971 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:04:45,972 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2020-09-25 03:04:45,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/069bf76e6/9307e0d40ce8444e910739b1d852da27/FLAG5ea7d1faf [2020-09-25 03:04:46,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/069bf76e6/9307e0d40ce8444e910739b1d852da27 [2020-09-25 03:04:46,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:04:46,279 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:04:46,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:04:46,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:04:46,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:04:46,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:04:46" (1/1) ... [2020-09-25 03:04:46,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f1a5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:46, skipping insertion in model container [2020-09-25 03:04:46,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:04:46" (1/1) ... [2020-09-25 03:04:46,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:04:46,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:04:46,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:04:46,825 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:04:46,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:04:46,957 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:04:46,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:46 WrapperNode [2020-09-25 03:04:46,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:04:46,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:04:46,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:04:46,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:04:46,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:46" (1/1) ... [2020-09-25 03:04:46,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:46" (1/1) ... [2020-09-25 03:04:46,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:46" (1/1) ... [2020-09-25 03:04:46,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:46" (1/1) ... [2020-09-25 03:04:47,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:46" (1/1) ... [2020-09-25 03:04:47,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:46" (1/1) ... [2020-09-25 03:04:47,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:46" (1/1) ... [2020-09-25 03:04:47,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:04:47,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:04:47,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:04:47,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:04:47,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:46" (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 03:04:47,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:04:47,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:04:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 03:04:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 03:04:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 03:04:47,168 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 03:04:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 03:04:47,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 03:04:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 03:04:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 03:04:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 03:04:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 03:04:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 03:04:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 03:04:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 03:04:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 03:04:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 03:04:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:04:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 03:04:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 03:04:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 03:04:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 03:04:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 03:04:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 03:04:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 03:04:47,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 03:04:47,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 03:04:47,173 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 03:04:47,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 03:04:47,173 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 03:04:47,173 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 03:04:47,173 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 03:04:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 03:04:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 03:04:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 03:04:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 03:04:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 03:04:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 03:04:47,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 03:04:47,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 03:04:47,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:04:47,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:04:47,175 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:04:47,175 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 03:04:47,175 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 03:04:47,176 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 03:04:47,176 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 03:04:47,176 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 03:04:47,176 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 03:04:47,176 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 03:04:47,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:04:47,177 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 03:04:47,177 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 03:04:47,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 03:04:47,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 03:04:47,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 03:04:47,177 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 03:04:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 03:04:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 03:04:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 03:04:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 03:04:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 03:04:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 03:04:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 03:04:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 03:04:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 03:04:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:04:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 03:04:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 03:04:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 03:04:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 03:04:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 03:04:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 03:04:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 03:04:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 03:04:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 03:04:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:04:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:04:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 03:04:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:04:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:04:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:04:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:04:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 03:04:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:04:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 03:04:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 03:04:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:04:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 03:04:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 03:04:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 03:04:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:04:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 03:04:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:04:48,402 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:04:48,402 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 03:04:48,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:04:48 BoogieIcfgContainer [2020-09-25 03:04:48,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:04:48,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:04:48,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:04:48,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:04:48,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:04:46" (1/3) ... [2020-09-25 03:04:48,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0c6177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:04:48, skipping insertion in model container [2020-09-25 03:04:48,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:46" (2/3) ... [2020-09-25 03:04:48,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0c6177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:04:48, skipping insertion in model container [2020-09-25 03:04:48,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:04:48" (3/3) ... [2020-09-25 03:04:48,419 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2020-09-25 03:04:48,430 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:04:48,441 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:04:48,461 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:04:48,491 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:04:48,491 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:04:48,492 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:04:48,492 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:04:48,492 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:04:48,492 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:04:48,492 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:04:48,492 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:04:48,520 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-25 03:04:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 03:04:48,539 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:04:48,540 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:04:48,541 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:04:48,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:04:48,549 INFO L82 PathProgramCache]: Analyzing trace with hash -749536702, now seen corresponding path program 1 times [2020-09-25 03:04:48,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:04:48,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75301083] [2020-09-25 03:04:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:04:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:49,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:49,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:49,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:49,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:51,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:53,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:53,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 03:04:53,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:04:53,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 03:04:53,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:53,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:04:53,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 03:04:53,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-25 03:04:53,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:04:54,397 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:04:54,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:54,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:54,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:54,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:04:54,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:54,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-25 03:04:54,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 03:04:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:04:54,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:04:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:54,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:54,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:54,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:54,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:54,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:04:54,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:54,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:54,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:54,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:54,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:54,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:04:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:54,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:54,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:54,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:54,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:54,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:04:54,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:54,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:54,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:54,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:54,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:04:54,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:04:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:54,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:54,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:54,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:54,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:54,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:04:54,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:54,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:54,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:54,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:04:54,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:54,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:04:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:54,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:54,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:54,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:54,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:54,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:04:54,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:54,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:55,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:04:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:55,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:55,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:55,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:04:55,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:55,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:04:55,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:55,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:55,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:55,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:04:55,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:04:55,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:04:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:55,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:55,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:55,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:04:55,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:55,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:04:55,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:04:55,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:55,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:55,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:55,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:55,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:55,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:55,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:04:55,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:55,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:55,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 03:04:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:55,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:55,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:55,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:55,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:55,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:04:55,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:04:55,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:55,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 03:04:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:55,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:55,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:55,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:55,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:04:55,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:04:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:04:55,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:04:55,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75301083] [2020-09-25 03:04:55,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:04:55,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 03:04:55,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633152156] [2020-09-25 03:04:55,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:04:55,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:04:55,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:04:55,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:04:55,210 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 9 states. [2020-09-25 03:04:55,797 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:04:56,784 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 03:04:57,327 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 03:04:58,731 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:04:59,043 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 03:04:59,378 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:04:59,928 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:00,235 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:00,532 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:01,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:05:01,405 INFO L93 Difference]: Finished difference Result 610 states and 744 transitions. [2020-09-25 03:05:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:05:01,409 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-25 03:05:01,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:05:01,436 INFO L225 Difference]: With dead ends: 610 [2020-09-25 03:05:01,436 INFO L226 Difference]: Without dead ends: 415 [2020-09-25 03:05:01,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-09-25 03:05:01,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-09-25 03:05:01,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 369. [2020-09-25 03:05:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-25 03:05:01,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 418 transitions. [2020-09-25 03:05:01,566 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 418 transitions. Word has length 160 [2020-09-25 03:05:01,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:05:01,567 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 418 transitions. [2020-09-25 03:05:01,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:05:01,567 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 418 transitions. [2020-09-25 03:05:01,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 03:05:01,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:05:01,574 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:05:01,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:05:01,574 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:05:01,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:05:01,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1505316662, now seen corresponding path program 1 times [2020-09-25 03:05:01,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:05:01,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687496057] [2020-09-25 03:05:01,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:05:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:01,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:02,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:02,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 03:05:02,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:02,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 894 [2020-09-25 03:05:02,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:02,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:05:02,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 03:05:02,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:05:02,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:02,939 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:05:02,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:02,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:05:03,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 03:05:03,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:05:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:03,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:03,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:03,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:05:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:03,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:05:03,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:03,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:05:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:03,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:03,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:05:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:03,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:05:03,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:03,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:05:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:03,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:03,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:03,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 03:05:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:05:03,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:03,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:03,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:05:03,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:03,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 03:05:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:05:03,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 03:05:03,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:05:03,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 03:05:03,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:05:03,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:05:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:05:03,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 03:05:03,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:05:03,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 03:05:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:05:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:05:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:05:03,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 03:05:03,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:05:03,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:03,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:05:03,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:05:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:05:03,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:03,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:05:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:03,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:03,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:05:03,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 03:05:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:03,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:03,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:05:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 03:05:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:03,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:03,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:03,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:03,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:03,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:03,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:03,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:05:03,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:03,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:05:03,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687496057] [2020-09-25 03:05:03,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:05:03,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 03:05:03,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991029078] [2020-09-25 03:05:03,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:05:03,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:05:03,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:05:03,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:05:03,481 INFO L87 Difference]: Start difference. First operand 369 states and 418 transitions. Second operand 10 states. [2020-09-25 03:05:05,076 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:05,408 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:05:05,761 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 03:05:06,115 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:05:06,438 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:05:06,749 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:05:07,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:05:07,540 INFO L93 Difference]: Finished difference Result 710 states and 860 transitions. [2020-09-25 03:05:07,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:05:07,544 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-09-25 03:05:07,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:05:07,549 INFO L225 Difference]: With dead ends: 710 [2020-09-25 03:05:07,549 INFO L226 Difference]: Without dead ends: 456 [2020-09-25 03:05:07,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:05:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-25 03:05:07,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 375. [2020-09-25 03:05:07,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 03:05:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 424 transitions. [2020-09-25 03:05:07,608 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 424 transitions. Word has length 208 [2020-09-25 03:05:07,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:05:07,609 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 424 transitions. [2020-09-25 03:05:07,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:05:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 424 transitions. [2020-09-25 03:05:07,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 03:05:07,613 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:05:07,614 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:05:07,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:05:07,614 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:05:07,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:05:07,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1630521046, now seen corresponding path program 1 times [2020-09-25 03:05:07,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:05:07,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731889357] [2020-09-25 03:05:07,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:05:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:08,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:08,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 03:05:08,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:08,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 972 [2020-09-25 03:05:08,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:08,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:05:08,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 03:05:08,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:05:08,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:08,914 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:05:08,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:08,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:05:09,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 03:05:09,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:09,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:09,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:09,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:05:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:09,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:09,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:09,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:05:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:09,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:05:09,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:09,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:05:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:09,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:09,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:09,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:09,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:05:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:09,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:05:09,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:09,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:05:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:09,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:09,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:09,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:09,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 03:05:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:05:09,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:09,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:09,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:09,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:09,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:09,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:05:09,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:09,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:09,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:09,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 03:05:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:05:09,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 03:05:09,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:05:09,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 03:05:09,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:05:09,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:05:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:05:09,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 03:05:09,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:05:09,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:05:09,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:05:09,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:05:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:05:09,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 03:05:09,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:05:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:05:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:05:09,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:05:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:05:09,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:05:09,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:05:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:09,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:05:09,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:05:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:09,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:09,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:09,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:05:09,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:09,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 03:05:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:09,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:09,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:09,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:05:09,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:09,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 03:05:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:09,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:09,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:09,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:09,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:09,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:09,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:09,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:09,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:05:09,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:09,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:05:09,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731889357] [2020-09-25 03:05:09,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:05:09,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 03:05:09,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883167074] [2020-09-25 03:05:09,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:05:09,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:05:09,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:05:09,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:05:09,431 INFO L87 Difference]: Start difference. First operand 375 states and 424 transitions. Second operand 9 states. [2020-09-25 03:05:10,717 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:05:11,020 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:05:11,338 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:11,693 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:05:11,987 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:12,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:05:12,825 INFO L93 Difference]: Finished difference Result 722 states and 893 transitions. [2020-09-25 03:05:12,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 03:05:12,827 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2020-09-25 03:05:12,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:05:12,831 INFO L225 Difference]: With dead ends: 722 [2020-09-25 03:05:12,832 INFO L226 Difference]: Without dead ends: 462 [2020-09-25 03:05:12,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:05:12,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-09-25 03:05:12,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 381. [2020-09-25 03:05:12,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-25 03:05:12,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 430 transitions. [2020-09-25 03:05:12,885 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 430 transitions. Word has length 208 [2020-09-25 03:05:12,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:05:12,885 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 430 transitions. [2020-09-25 03:05:12,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:05:12,886 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 430 transitions. [2020-09-25 03:05:12,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 03:05:12,889 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:05:12,890 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:05:12,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:05:12,890 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:05:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:05:12,891 INFO L82 PathProgramCache]: Analyzing trace with hash -940026905, now seen corresponding path program 1 times [2020-09-25 03:05:12,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:05:12,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826434807] [2020-09-25 03:05:12,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:05:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:13,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:14,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:14,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 03:05:14,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:14,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1398 [2020-09-25 03:05:14,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:14,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:05:14,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 03:05:14,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 03:05:14,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:14,678 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:05:14,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:14,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:05:15,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-09-25 03:05:15,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 03:05:15,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:15,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:05:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:15,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:15,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:15,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:15,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:05:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:15,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:15,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:15,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:15,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:05:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:15,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:05:15,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:05:15,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:15,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:05:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:15,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:15,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:15,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:15,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:05:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:15,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:15,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:05:15,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:15,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 03:05:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:05:15,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:05:15,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:05:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:15,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:15,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:15,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:15,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:15,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 03:05:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:05:15,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 03:05:15,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 03:05:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:05:15,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:15,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:05:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:05:15,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:05:15,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 03:05:15,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:15,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:05:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:05:15,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:05:15,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:05:15,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:15,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:05:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:05:15,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:15,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 03:05:15,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:15,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:05:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:15,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:05:15,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:15,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:15,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:05:15,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:15,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 03:05:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:15,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:15,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:15,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:05:15,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:15,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:15,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 03:05:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:15,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:15,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:15,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:15,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:15,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:15,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:05:15,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:15,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:15,402 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:05:15,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826434807] [2020-09-25 03:05:15,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:05:15,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:05:15,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574121040] [2020-09-25 03:05:15,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:05:15,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:05:15,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:05:15,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:05:15,404 INFO L87 Difference]: Start difference. First operand 381 states and 430 transitions. Second operand 7 states. [2020-09-25 03:05:15,939 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:17,295 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:19,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:05:19,744 INFO L93 Difference]: Finished difference Result 1187 states and 1560 transitions. [2020-09-25 03:05:19,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 03:05:19,746 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-09-25 03:05:19,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:05:19,753 INFO L225 Difference]: With dead ends: 1187 [2020-09-25 03:05:19,753 INFO L226 Difference]: Without dead ends: 903 [2020-09-25 03:05:19,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:05:19,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-09-25 03:05:19,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 766. [2020-09-25 03:05:19,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2020-09-25 03:05:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 922 transitions. [2020-09-25 03:05:19,849 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 922 transitions. Word has length 208 [2020-09-25 03:05:19,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:05:19,850 INFO L479 AbstractCegarLoop]: Abstraction has 766 states and 922 transitions. [2020-09-25 03:05:19,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:05:19,850 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 922 transitions. [2020-09-25 03:05:19,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 03:05:19,853 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:05:19,854 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:05:19,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:05:19,854 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:05:19,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:05:19,855 INFO L82 PathProgramCache]: Analyzing trace with hash -492871093, now seen corresponding path program 1 times [2020-09-25 03:05:19,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:05:19,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779523680] [2020-09-25 03:05:19,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:05:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:19,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:20,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:24,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:24,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 03:05:24,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:05:24,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 03:05:24,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:05:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 03:05:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-09-25 03:05:24,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:25,421 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:05:25,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:25,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:25,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:25,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:05:25,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:25,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-25 03:05:25,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:25,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:25,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:25,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 03:05:25,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:25,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:05:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:25,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:25,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:25,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:25,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:25,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:25,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:25,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:25,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:25,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:25,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:25,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:05:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:25,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:25,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:25,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:25,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:25,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:25,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:25,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:25,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:25,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:25,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:25,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:05:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:25,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:25,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:25,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:25,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:25,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:05:25,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:25,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:25,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:05:25,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:25,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:05:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:25,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:25,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:25,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:25,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:25,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:25,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:25,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:25,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:05:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:25,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:25,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:25,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:25,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:25,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:25,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:05:25,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:25,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 03:05:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:25,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:25,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:25,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:05:25,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:25,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 03:05:25,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:25,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:05:25,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:05:25,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:05:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:25,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 03:05:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:25,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:25,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:25,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:05:25,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:25,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:05:25,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:25,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:25,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:05:25,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:25,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:25,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:25,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:25,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:25,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:25,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:26,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:26,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:05:26,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 03:05:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:26,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:26,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:26,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:05:26,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:26,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 03:05:26,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:26,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:26,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:26,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 03:05:26,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:26,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:05:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:26,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:26,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:26,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:05:26,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:26,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:05:26,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:26,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:26,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:26,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:26,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:26,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:05:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:26,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:26,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:26,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:05:26,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:26,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:05:26,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:26,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:26,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:05:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:26,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:26,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:26,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:05:26,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:26,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:26,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:26,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:26,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:26,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:05:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:26,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:26,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:26,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:26,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:26,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:05:26,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:26,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:26,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:26,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:26,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 03:05:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:26,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:26,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:26,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:26,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:26,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:05:26,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:05:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:05:26,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:26,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 03:05:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:26,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:26,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:26,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:26,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:26,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:26,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:26,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:26,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:05:26,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:26,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:26,307 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:05:26,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779523680] [2020-09-25 03:05:26,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:05:26,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 03:05:26,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706175377] [2020-09-25 03:05:26,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 03:05:26,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:05:26,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 03:05:26,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:05:26,311 INFO L87 Difference]: Start difference. First operand 766 states and 922 transitions. Second operand 13 states. [2020-09-25 03:05:26,869 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:27,744 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:05:28,574 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:28,896 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:29,312 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:05:29,652 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:05:30,033 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:30,363 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:30,757 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 03:05:31,060 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:05:33,250 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:33,545 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:33,912 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:05:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:05:35,174 INFO L93 Difference]: Finished difference Result 2257 states and 2908 transitions. [2020-09-25 03:05:35,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-25 03:05:35,174 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 213 [2020-09-25 03:05:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:05:35,185 INFO L225 Difference]: With dead ends: 2257 [2020-09-25 03:05:35,185 INFO L226 Difference]: Without dead ends: 1585 [2020-09-25 03:05:35,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=377, Invalid=1515, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 03:05:35,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2020-09-25 03:05:35,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1293. [2020-09-25 03:05:35,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1293 states. [2020-09-25 03:05:35,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1557 transitions. [2020-09-25 03:05:35,364 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1557 transitions. Word has length 213 [2020-09-25 03:05:35,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:05:35,365 INFO L479 AbstractCegarLoop]: Abstraction has 1293 states and 1557 transitions. [2020-09-25 03:05:35,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 03:05:35,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1557 transitions. [2020-09-25 03:05:35,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-09-25 03:05:35,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:05:35,375 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:05:35,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:05:35,376 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:05:35,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:05:35,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1351800349, now seen corresponding path program 1 times [2020-09-25 03:05:35,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:05:35,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111447206] [2020-09-25 03:05:35,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:05:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:35,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:35,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:35,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:36,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:36,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:36,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking...