/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:57:34,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:57:34,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:57:34,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:57:34,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:57:34,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:57:34,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:57:34,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:57:34,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:57:34,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:57:34,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:57:34,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:57:34,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:57:34,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:57:34,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:57:34,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:57:34,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:57:34,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:57:34,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:57:34,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:57:34,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:57:34,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:57:34,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:57:34,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:57:34,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:57:34,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:57:34,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:57:34,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:57:34,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:57:34,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:57:34,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:57:34,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:57:34,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:57:34,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:57:34,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:57:34,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:57:34,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:57:34,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:57:34,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:57:34,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:57:34,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:57:34,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:57:34,339 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:57:34,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:57:34,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:57:34,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:57:34,342 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:57:34,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:57:34,343 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:57:34,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:57:34,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:57:34,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:57:34,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:57:34,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:57:34,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:57:34,345 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:57:34,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:57:34,346 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:57:34,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:57:34,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:57:34,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:57:34,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:57:34,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:57:34,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:57:34,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:57:34,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:57:34,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:57:34,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:57:34,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:57:34,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:57:34,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:57:34,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:57:34,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:57:34,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:57:34,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:57:34,801 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:57:34,801 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:57:34,802 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c [2020-09-25 01:57:34,896 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84371bf0c/20139bf1300b433897c84d7258f056af/FLAG4ba5d9800 [2020-09-25 01:57:35,510 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:57:35,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c [2020-09-25 01:57:35,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84371bf0c/20139bf1300b433897c84d7258f056af/FLAG4ba5d9800 [2020-09-25 01:57:35,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84371bf0c/20139bf1300b433897c84d7258f056af [2020-09-25 01:57:35,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:57:35,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:57:35,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:57:35,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:57:35,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:57:35,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:57:35" (1/1) ... [2020-09-25 01:57:35,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:35, skipping insertion in model container [2020-09-25 01:57:35,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:57:35" (1/1) ... [2020-09-25 01:57:35,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:57:35,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:57:36,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:57:36,470 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:57:36,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:57:36,588 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:57:36,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:36 WrapperNode [2020-09-25 01:57:36,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:57:36,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:57:36,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:57:36,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:57:36,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:36" (1/1) ... [2020-09-25 01:57:36,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:36" (1/1) ... [2020-09-25 01:57:36,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:36" (1/1) ... [2020-09-25 01:57:36,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:36" (1/1) ... [2020-09-25 01:57:36,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:36" (1/1) ... [2020-09-25 01:57:36,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:36" (1/1) ... [2020-09-25 01:57:36,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:36" (1/1) ... [2020-09-25 01:57:36,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:57:36,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:57:36,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:57:36,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:57:36,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:57:36,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:57:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:57:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:57:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:57:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:57:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:57:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:57:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:57:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 01:57:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:57:36,774 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:57:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:57:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:57:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:57:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:57:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:57:36,775 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:57:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:57:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:57:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:57:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:57:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:57:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:57:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:57:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:57:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:57:36,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:57:36,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:57:36,778 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:57:36,778 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:57:36,778 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:57:36,778 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:57:36,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:57:36,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:57:36,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:57:36,779 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:57:36,779 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:57:36,779 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:57:36,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:57:36,780 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:57:36,780 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:57:36,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:57:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:57:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:57:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:57:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:57:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:57:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:57:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:57:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:57:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:57:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:57:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:57:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:57:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:57:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:57:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:57:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:57:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:57:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:57:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:57:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:57:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:57:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 01:57:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:57:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:57:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:57:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:57:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:57:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:57:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:57:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:57:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:57:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:57:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:57:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:57:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:57:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:57:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:57:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:57:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:57:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:57:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:57:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:57:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:57:36,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:57:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:57:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:57:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:57:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:57:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:57:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:57:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:57:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:57:36,787 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:57:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:57:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:57:36,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:57:37,973 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:57:37,973 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:57:37,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:57:37 BoogieIcfgContainer [2020-09-25 01:57:37,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:57:37,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:57:37,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:57:37,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:57:37,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:57:35" (1/3) ... [2020-09-25 01:57:37,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37756d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:57:37, skipping insertion in model container [2020-09-25 01:57:37,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:36" (2/3) ... [2020-09-25 01:57:37,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37756d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:57:37, skipping insertion in model container [2020-09-25 01:57:37,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:57:37" (3/3) ... [2020-09-25 01:57:38,000 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2020-09-25 01:57:38,014 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:57:38,027 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:57:38,051 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:57:38,092 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:57:38,092 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:57:38,092 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:57:38,093 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:57:38,094 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:57:38,095 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:57:38,095 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:57:38,095 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:57:38,144 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states. [2020-09-25 01:57:38,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 01:57:38,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:38,188 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 01:57:38,188 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:38,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:38,201 INFO L82 PathProgramCache]: Analyzing trace with hash 41211657, now seen corresponding path program 1 times [2020-09-25 01:57:38,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:38,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664084686] [2020-09-25 01:57:38,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:38,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:38,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:40,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:40,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:43,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:43,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:43,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 01:57:43,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:57:43,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 01:57:43,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:57:43,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:43,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 44 [2020-09-25 01:57:44,125 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:44,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:44,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 01:57:44,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:44,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:44,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:44,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:44,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:44,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:57:44,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:44,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:44,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:44,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:44,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:44,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:57:44,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:44,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:44,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:44,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:44,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:44,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:57:44,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:44,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:44,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:44,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:44,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:44,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:44,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:44,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:44,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:44,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:44,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:44,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:44,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:44,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:44,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:57:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:44,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:44,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:57:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:44,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:44,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:44,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:44,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:44,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:44,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:44,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:44,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:57:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:44,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:44,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:44,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:44,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 01:57:44,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:57:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:44,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:44,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:44,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:44,552 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 01:57:44,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664084686] [2020-09-25 01:57:44,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:44,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:57:44,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181971563] [2020-09-25 01:57:44,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:57:44,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:44,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:57:44,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:57:44,595 INFO L87 Difference]: Start difference. First operand 334 states. Second operand 4 states. [2020-09-25 01:57:46,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:46,193 INFO L93 Difference]: Finished difference Result 530 states and 624 transitions. [2020-09-25 01:57:46,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:57:46,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 01:57:46,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:46,216 INFO L225 Difference]: With dead ends: 530 [2020-09-25 01:57:46,216 INFO L226 Difference]: Without dead ends: 332 [2020-09-25 01:57:46,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:57:46,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-09-25 01:57:46,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 283. [2020-09-25 01:57:46,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-25 01:57:46,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 310 transitions. [2020-09-25 01:57:46,346 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 310 transitions. Word has length 160 [2020-09-25 01:57:46,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:46,348 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 310 transitions. [2020-09-25 01:57:46,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:57:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 310 transitions. [2020-09-25 01:57:46,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:57:46,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:46,357 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] [2020-09-25 01:57:46,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:57:46,358 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:46,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:46,358 INFO L82 PathProgramCache]: Analyzing trace with hash -902563244, now seen corresponding path program 1 times [2020-09-25 01:57:46,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:46,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487710782] [2020-09-25 01:57:46,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:46,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:46,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:48,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:48,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:49,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:51,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:51,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 01:57:51,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:57:51,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 01:57:51,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:57:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:57:51,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:51,795 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:51,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:51,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:51,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:51,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:51,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:51,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 01:57:51,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:51,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:51,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:51,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:51,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:51,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:51,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:51,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:51,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:51,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:51,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:51,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:51,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:51,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:51,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:51,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:51,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:51,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:51,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:51,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:51,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:51,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:51,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:51,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:51,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:51,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:51,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:51,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:51,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:51,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:51,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:51,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:51,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:51,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:51,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:51,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:51,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:51,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:51,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:51,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:51,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:51,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:51,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:51,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:52,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:52,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:52,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:52,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:52,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:52,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:52,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:52,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:52,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:52,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:52,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:52,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:57:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:52,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:52,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:52,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:52,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:52,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:52,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:57:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:52,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:52,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:52,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:52,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:52,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:52,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:52,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:52,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:52,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:52,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:52,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:52,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 01:57:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:52,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:52,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:52,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:52,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:52,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:52,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:52,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:52,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:52,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:57:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:52,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:52,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:52,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:52,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:52,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:52,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:52,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:52,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:52,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:52,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:52,088 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 01:57:52,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487710782] [2020-09-25 01:57:52,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:52,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:57:52,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932432605] [2020-09-25 01:57:52,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:57:52,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:52,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:57:52,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:57:52,094 INFO L87 Difference]: Start difference. First operand 283 states and 310 transitions. Second operand 5 states. [2020-09-25 01:57:52,746 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:53,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:53,929 INFO L93 Difference]: Finished difference Result 453 states and 512 transitions. [2020-09-25 01:57:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:57:53,930 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 01:57:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:53,935 INFO L225 Difference]: With dead ends: 453 [2020-09-25 01:57:53,935 INFO L226 Difference]: Without dead ends: 321 [2020-09-25 01:57:53,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:57:53,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-25 01:57:53,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 273. [2020-09-25 01:57:53,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-25 01:57:53,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 297 transitions. [2020-09-25 01:57:53,993 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 297 transitions. Word has length 161 [2020-09-25 01:57:53,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:53,994 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 297 transitions. [2020-09-25 01:57:53,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:57:53,994 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 297 transitions. [2020-09-25 01:57:53,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 01:57:53,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:53,997 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] [2020-09-25 01:57:53,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:57:53,997 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:53,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:53,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1967698974, now seen corresponding path program 1 times [2020-09-25 01:57:53,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:53,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450063018] [2020-09-25 01:57:53,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:54,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:54,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:55,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:56,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:59,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:59,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 01:57:59,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:57:59,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:57:59,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:57:59,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 01:57:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:57:59,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:59,491 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:59,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:59,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:59,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:59,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:59,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:59,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 01:57:59,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:59,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:59,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:59,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:59,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:59,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:59,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:59,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:59,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:59,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:59,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:59,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:59,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:59,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:59,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:59,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:59,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:59,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:59,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:59,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:59,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:59,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:59,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:59,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:57:59,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:59,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:59,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:59,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:59,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:59,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:59,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:59,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:59,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:59,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:59,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:59,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:59,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:59,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:59,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:59,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:59,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:59,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:59,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:59,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:59,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:57:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:59,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:59,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:59,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:59,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:59,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:59,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:59,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:59,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:59,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:59,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:59,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:59,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:59,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:59,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:59,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:59,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:57:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:59,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:59,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:59,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:59,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:59,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:59,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:57:59,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:59,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 01:57:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:59,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:59,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:59,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:59,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:59,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:57:59,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:57:59,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:59,825 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 01:57:59,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450063018] [2020-09-25 01:57:59,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:59,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:57:59,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341960914] [2020-09-25 01:57:59,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:57:59,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:59,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:57:59,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:57:59,831 INFO L87 Difference]: Start difference. First operand 273 states and 297 transitions. Second operand 9 states. [2020-09-25 01:58:00,318 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:01,244 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:01,574 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:58:02,893 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:03,205 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:03,538 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:04,157 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:04,488 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:58:04,791 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:05,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:05,320 INFO L93 Difference]: Finished difference Result 579 states and 673 transitions. [2020-09-25 01:58:05,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:58:05,321 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-25 01:58:05,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:05,327 INFO L225 Difference]: With dead ends: 579 [2020-09-25 01:58:05,327 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 01:58:05,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 01:58:05,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 01:58:05,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 373. [2020-09-25 01:58:05,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-25 01:58:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 410 transitions. [2020-09-25 01:58:05,385 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 410 transitions. Word has length 170 [2020-09-25 01:58:05,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:05,386 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 410 transitions. [2020-09-25 01:58:05,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:58:05,386 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 410 transitions. [2020-09-25 01:58:05,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 01:58:05,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:05,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:05,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:58:05,391 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:05,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:05,391 INFO L82 PathProgramCache]: Analyzing trace with hash 212621173, now seen corresponding path program 1 times [2020-09-25 01:58:05,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:05,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50080257] [2020-09-25 01:58:05,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:05,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 01:58:06,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 875 [2020-09-25 01:58:06,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:06,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 01:58:06,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:06,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:06,682 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:06,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:06,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 01:58:06,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:06,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:06,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:06,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:06,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:06,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:06,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:06,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:06,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:06,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:06,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:06,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:06,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:06,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:06,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:06,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:06,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:06,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:06,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:06,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:06,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:06,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:06,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:58:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:07,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:07,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 01:58:07,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:07,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 01:58:07,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:07,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 01:58:07,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:07,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:07,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:07,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:07,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:07,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:58:07,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:07,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 01:58:07,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:58:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:07,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:07,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:07,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:07,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:07,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:58:07,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:07,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 01:58:07,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:07,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:07,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:07,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:58:07,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:07,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:58:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:07,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:07,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:07,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:58:07,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:58:07,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:07,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:07,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:58:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:07,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:07,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:07,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:58:07,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:07,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 01:58:07,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:07,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:07,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 01:58:07,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:07,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:07,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:07,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:07,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:07,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:58:07,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:07,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:07,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:07,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:07,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:07,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:07,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:07,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:07,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:07,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:07,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:07,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:07,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:07,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:07,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:58:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:07,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:07,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:07,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:07,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:07,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:07,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:07,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:07,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:07,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:07,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:07,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 01:58:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:07,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:07,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:07,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:07,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:07,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:07,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:07,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:07,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 01:58:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:07,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:07,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:07,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:07,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:07,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:07,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:07,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:07,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:07,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:07,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:07,558 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 01:58:07,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50080257] [2020-09-25 01:58:07,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:07,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:58:07,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533896874] [2020-09-25 01:58:07,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:58:07,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:07,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:58:07,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:58:07,565 INFO L87 Difference]: Start difference. First operand 373 states and 410 transitions. Second operand 10 states. [2020-09-25 01:58:09,319 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:09,638 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:58:09,952 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:58:10,263 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:10,612 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:58:10,908 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:11,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:11,912 INFO L93 Difference]: Finished difference Result 715 states and 838 transitions. [2020-09-25 01:58:11,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:58:11,913 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 230 [2020-09-25 01:58:11,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:11,919 INFO L225 Difference]: With dead ends: 715 [2020-09-25 01:58:11,919 INFO L226 Difference]: Without dead ends: 457 [2020-09-25 01:58:11,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:58:11,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-25 01:58:11,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 390. [2020-09-25 01:58:11,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-25 01:58:11,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 429 transitions. [2020-09-25 01:58:11,973 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 429 transitions. Word has length 230 [2020-09-25 01:58:11,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:11,974 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 429 transitions. [2020-09-25 01:58:11,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:58:11,974 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 429 transitions. [2020-09-25 01:58:11,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 01:58:11,977 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:11,978 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:11,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:58:11,978 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:11,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:11,979 INFO L82 PathProgramCache]: Analyzing trace with hash 880367573, now seen corresponding path program 1 times [2020-09-25 01:58:11,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:11,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878511147] [2020-09-25 01:58:11,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:12,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:12,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:12,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 01:58:12,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:12,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 750 [2020-09-25 01:58:12,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:12,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:12,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 01:58:12,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:12,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,073 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:13,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:13,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 01:58:13,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:13,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:13,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:13,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:13,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:13,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:13,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:13,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:13,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:13,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:13,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:13,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:13,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:13,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:13,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:58:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 01:58:13,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 01:58:13,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:13,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 01:58:13,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:13,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:58:13,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 01:58:13,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:13,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:58:13,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:13,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:58:13,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 01:58:13,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:13,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:58:13,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:13,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:58:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:58:13,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:58:13,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:58:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:13,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:13,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:58:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:58:13,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 01:58:13,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 01:58:13,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:58:13,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:13,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:13,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:58:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:13,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:13,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 01:58:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:13,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:13,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 01:58:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:13,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,791 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 01:58:13,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878511147] [2020-09-25 01:58:13,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:13,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:58:13,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863289791] [2020-09-25 01:58:13,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:58:13,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:13,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:58:13,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:58:13,795 INFO L87 Difference]: Start difference. First operand 390 states and 429 transitions. Second operand 9 states. [2020-09-25 01:58:15,217 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:15,545 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:58:15,898 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:16,239 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:58:16,537 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:17,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:17,474 INFO L93 Difference]: Finished difference Result 736 states and 861 transitions. [2020-09-25 01:58:17,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:58:17,475 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2020-09-25 01:58:17,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:17,478 INFO L225 Difference]: With dead ends: 736 [2020-09-25 01:58:17,479 INFO L226 Difference]: Without dead ends: 461 [2020-09-25 01:58:17,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:58:17,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-09-25 01:58:17,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 396. [2020-09-25 01:58:17,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2020-09-25 01:58:17,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 435 transitions. [2020-09-25 01:58:17,532 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 435 transitions. Word has length 230 [2020-09-25 01:58:17,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:17,533 INFO L479 AbstractCegarLoop]: Abstraction has 396 states and 435 transitions. [2020-09-25 01:58:17,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:58:17,533 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 435 transitions. [2020-09-25 01:58:17,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 01:58:17,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:17,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:17,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:58:17,538 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:17,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:17,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1607472850, now seen corresponding path program 1 times [2020-09-25 01:58:17,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:17,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51257898] [2020-09-25 01:58:17,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:17,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 01:58:19,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1433 [2020-09-25 01:58:19,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 01:58:19,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 01:58:19,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 01:58:19,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:19,381 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:19,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:19,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 01:58:19,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 01:58:19,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:19,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:19,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:19,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:19,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:19,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:19,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:19,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:58:19,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:19,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:19,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:19,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:19,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:19,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:19,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:58:19,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:19,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:19,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:58:19,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:19,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:19,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:19,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:19,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:58:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 01:58:19,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 01:58:19,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 01:58:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 01:58:19,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:58:19,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 01:58:19,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:58:19,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:58:19,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:58:19,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:19,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:58:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:58:19,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:19,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:58:19,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:58:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:58:19,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 01:58:19,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:19,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 01:58:19,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:58:19,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:19,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:19,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:19,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:19,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:19,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:19,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:19,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:19,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:19,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:58:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:19,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:20,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:20,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:20,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:20,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:58:20,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:20,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:20,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:20,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:20,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:20,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 01:58:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:20,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:20,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:20,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:20,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:20,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:20,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:20,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:20,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:20,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:20,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:20,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 01:58:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:20,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:20,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:20,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:20,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:20,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:20,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:20,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:20,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:20,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:20,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:20,073 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 01:58:20,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51257898] [2020-09-25 01:58:20,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:20,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:58:20,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279609424] [2020-09-25 01:58:20,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:58:20,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:20,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:58:20,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:58:20,078 INFO L87 Difference]: Start difference. First operand 396 states and 435 transitions. Second operand 7 states. [2020-09-25 01:58:20,608 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:21,276 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:23,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:23,745 INFO L93 Difference]: Finished difference Result 1032 states and 1220 transitions. [2020-09-25 01:58:23,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:58:23,745 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 230 [2020-09-25 01:58:23,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:23,751 INFO L225 Difference]: With dead ends: 1032 [2020-09-25 01:58:23,751 INFO L226 Difference]: Without dead ends: 751 [2020-09-25 01:58:23,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:58:23,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2020-09-25 01:58:23,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 678. [2020-09-25 01:58:23,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-09-25 01:58:23,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 764 transitions. [2020-09-25 01:58:23,850 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 764 transitions. Word has length 230 [2020-09-25 01:58:23,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:23,851 INFO L479 AbstractCegarLoop]: Abstraction has 678 states and 764 transitions. [2020-09-25 01:58:23,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:58:23,851 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 764 transitions. [2020-09-25 01:58:23,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 01:58:23,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:23,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:23,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 01:58:23,855 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:23,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:23,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1130657052, now seen corresponding path program 1 times [2020-09-25 01:58:23,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:23,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008964115] [2020-09-25 01:58:23,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:23,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:24,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking...