/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_spec2_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:11:13,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:11:13,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:11:13,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:11:13,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:11:13,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:11:13,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:11:13,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:11:13,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:11:13,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:11:13,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:11:13,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:11:13,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:11:13,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:11:13,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:11:13,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:11:13,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:11:13,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:11:13,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:11:13,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:11:13,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:11:13,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:11:13,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:11:13,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:11:13,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:11:13,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:11:13,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:11:13,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:11:13,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:11:13,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:11:13,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:11:13,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:11:13,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:11:13,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:11:13,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:11:13,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:11:13,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:11:13,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:11:13,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:11:13,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:11:13,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:11:13,221 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 05:11:13,252 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:11:13,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:11:13,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:11:13,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:11:13,254 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:11:13,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:11:13,254 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:11:13,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:11:13,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:11:13,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:11:13,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:11:13,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:11:13,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:11:13,256 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:11:13,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:11:13,256 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:11:13,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:11:13,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:11:13,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:11:13,257 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:11:13,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:11:13,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:11:13,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:11:13,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:11:13,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:11:13,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:11:13,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:11:13,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:11:13,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:11:13,259 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:11:13,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:11:13,752 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:11:13,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:11:13,758 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:11:13,759 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:11:13,760 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product12.cil.c [2020-09-25 05:11:13,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e1101dc6/bcf885cd7c9e4c7ea22f2b47f038412f/FLAGabb2479e6 [2020-09-25 05:11:14,441 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:11:14,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product12.cil.c [2020-09-25 05:11:14,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e1101dc6/bcf885cd7c9e4c7ea22f2b47f038412f/FLAGabb2479e6 [2020-09-25 05:11:14,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e1101dc6/bcf885cd7c9e4c7ea22f2b47f038412f [2020-09-25 05:11:14,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:11:14,743 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:11:14,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:11:14,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:11:14,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:11:14,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:11:14" (1/1) ... [2020-09-25 05:11:14,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:14, skipping insertion in model container [2020-09-25 05:11:14,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:11:14" (1/1) ... [2020-09-25 05:11:14,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:11:14,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:11:15,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:11:15,200 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:11:15,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:11:15,444 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:11:15,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:15 WrapperNode [2020-09-25 05:11:15,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:11:15,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:11:15,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:11:15,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:11:15,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:15" (1/1) ... [2020-09-25 05:11:15,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:15" (1/1) ... [2020-09-25 05:11:15,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:15" (1/1) ... [2020-09-25 05:11:15,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:15" (1/1) ... [2020-09-25 05:11:15,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:15" (1/1) ... [2020-09-25 05:11:15,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:15" (1/1) ... [2020-09-25 05:11:15,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:15" (1/1) ... [2020-09-25 05:11:15,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:11:15,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:11:15,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:11:15,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:11:15,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:15" (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 05:11:15,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:11:15,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:11:15,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:11:15,641 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:11:15,641 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:11:15,641 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:11:15,642 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:11:15,643 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:11:15,643 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:11:15,643 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:11:15,644 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 05:11:15,644 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:11:15,644 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:11:15,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:11:15,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:11:15,645 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:11:15,645 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:11:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:11:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:11:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:11:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:11:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:11:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:11:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:11:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:11:15,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:11:15,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:11:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:11:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:11:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:11:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:11:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:11:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:11:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:11:15,650 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:11:15,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:11:15,650 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:11:15,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:11:15,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:11:15,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:11:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:11:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:11:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:11:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:11:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:11:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:11:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:11:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:11:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:11:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:11:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:11:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:11:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:11:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:11:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:11:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:11:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:11:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:11:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:11:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:11:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:11:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 05:11:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:11:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:11:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:11:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:11:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:11:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:11:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:11:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:11:15,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:11:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:11:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:11:15,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:11:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:11:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:11:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:11:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:11:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:11:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:11:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:11:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:11:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:11:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:11:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:11:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:11:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:11:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:11:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:11:15,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:11:16,728 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:11:16,728 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:11:16,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:11:16 BoogieIcfgContainer [2020-09-25 05:11:16,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:11:16,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:11:16,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:11:16,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:11:16,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:11:14" (1/3) ... [2020-09-25 05:11:16,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380ef149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:11:16, skipping insertion in model container [2020-09-25 05:11:16,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:15" (2/3) ... [2020-09-25 05:11:16,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380ef149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:11:16, skipping insertion in model container [2020-09-25 05:11:16,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:11:16" (3/3) ... [2020-09-25 05:11:16,745 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product12.cil.c [2020-09-25 05:11:16,756 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:11:16,767 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:11:16,790 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:11:16,824 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:11:16,825 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:11:16,825 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:11:16,825 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:11:16,825 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:11:16,825 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:11:16,825 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:11:16,825 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:11:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states. [2020-09-25 05:11:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:11:16,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:16,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:11:16,868 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:16,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:16,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1344573780, now seen corresponding path program 1 times [2020-09-25 05:11:16,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:16,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [535673767] [2020-09-25 05:11:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:11:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:17,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:17,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:19,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:20,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:20,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:21,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:22,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:22,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:11:22,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:11:22,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 05:11:22,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:22,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:22,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:22,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:11:22,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:22,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:11:22,779 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:22,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:22,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:22,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:22,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:22,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:22,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 05:11:22,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:22,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:22,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:23,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:23,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:23,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:23,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:23,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:23,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:23,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:23,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:23,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:11:23,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:23,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:23,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:23,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:23,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:23,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:23,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:23,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:23,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:23,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:23,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:23,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:23,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:23,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:23,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:23,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:23,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:23,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:11:23,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:23,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:23,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:23,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:23,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:23,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:23,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:23,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:23,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:23,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:23,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:23,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:23,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:23,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:23,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:23,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:23,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:23,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:23,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:23,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:23,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:23,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:23,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:23,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:23,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:23,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:23,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 05:11:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:23,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:23,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:23,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:23,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:23,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:23,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:23,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:23,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:23,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:23,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:11:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:23,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:23,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:23,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:23,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:23,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:23,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:23,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:23,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:23,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:23,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:23,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:23,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:11:23,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [535673767] [2020-09-25 05:11:23,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:11:23,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:11:23,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732476957] [2020-09-25 05:11:23,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:11:23,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:23,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:11:23,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:11:23,250 INFO L87 Difference]: Start difference. First operand 279 states. Second operand 4 states. [2020-09-25 05:11:24,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:24,571 INFO L93 Difference]: Finished difference Result 387 states and 462 transitions. [2020-09-25 05:11:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:11:24,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 05:11:24,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:24,595 INFO L225 Difference]: With dead ends: 387 [2020-09-25 05:11:24,595 INFO L226 Difference]: Without dead ends: 260 [2020-09-25 05:11:24,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:11:24,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-25 05:11:24,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 212. [2020-09-25 05:11:24,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-25 05:11:24,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 227 transitions. [2020-09-25 05:11:24,709 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 227 transitions. Word has length 148 [2020-09-25 05:11:24,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:24,710 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 227 transitions. [2020-09-25 05:11:24,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:11:24,710 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 227 transitions. [2020-09-25 05:11:24,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 05:11:24,716 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:24,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:11:24,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:11:24,717 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:24,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:24,718 INFO L82 PathProgramCache]: Analyzing trace with hash 643264666, now seen corresponding path program 1 times [2020-09-25 05:11:24,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:24,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232294615] [2020-09-25 05:11:24,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:11:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:24,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:24,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:26,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:27,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:28,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:29,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:29,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:29,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:11:29,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:11:29,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 05:11:29,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:29,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:11:29,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:11:29,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:30,172 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:30,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:30,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:30,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:30,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:30,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:30,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 05:11:30,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:30,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:30,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:30,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:30,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:30,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:30,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:30,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:30,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:30,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:30,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:30,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:30,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:30,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:30,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:30,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:30,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:30,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:30,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:30,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:30,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:30,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:30,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:30,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:30,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:30,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:30,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:30,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:30,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:30,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:30,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:30,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:30,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:11:30,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:30,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:30,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:30,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:30,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:30,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:30,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:30,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:30,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:30,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:30,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:30,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:30,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:30,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:30,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:30,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:30,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:30,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:30,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:30,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:30,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:30,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:30,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:30,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:30,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:30,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:30,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:30,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 05:11:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:30,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:30,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:30,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:30,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:30,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:11:30,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:30,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:30,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:30,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:30,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:30,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:30,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:11:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:30,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:30,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:30,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:30,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:30,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:30,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:30,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:30,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:30,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:30,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:30,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:11:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:11:30,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232294615] [2020-09-25 05:11:30,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:11:30,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:11:30,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693119911] [2020-09-25 05:11:30,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:11:30,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:30,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:11:30,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:11:30,484 INFO L87 Difference]: Start difference. First operand 212 states and 227 transitions. Second operand 5 states. [2020-09-25 05:11:31,220 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:11:31,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:31,938 INFO L93 Difference]: Finished difference Result 303 states and 343 transitions. [2020-09-25 05:11:31,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:11:31,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 05:11:31,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:31,944 INFO L225 Difference]: With dead ends: 303 [2020-09-25 05:11:31,945 INFO L226 Difference]: Without dead ends: 249 [2020-09-25 05:11:31,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 05:11:31,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-25 05:11:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 202. [2020-09-25 05:11:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-25 05:11:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 214 transitions. [2020-09-25 05:11:31,988 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 214 transitions. Word has length 149 [2020-09-25 05:11:31,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:31,989 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 214 transitions. [2020-09-25 05:11:31,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:11:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 214 transitions. [2020-09-25 05:11:31,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 05:11:31,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:31,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:11:31,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:11:31,993 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:31,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:31,993 INFO L82 PathProgramCache]: Analyzing trace with hash -2137394470, now seen corresponding path program 1 times [2020-09-25 05:11:31,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:31,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617454985] [2020-09-25 05:11:31,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:11:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:32,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:32,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:33,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:33,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:34,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:37,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:37,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 05:11:37,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:11:37,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 05:11:37,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:37,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 05:11:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:11:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:37,341 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:37,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:37,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:37,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:37,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:37,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:37,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 05:11:37,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:37,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:37,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:37,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:37,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:37,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:37,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:37,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:37,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:37,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:37,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:37,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:37,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:37,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:37,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:37,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:37,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:37,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:37,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:37,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:37,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:37,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:37,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:37,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:37,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:37,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:37,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:37,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:37,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:37,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:37,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:37,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:37,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:37,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:37,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:37,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:11:37,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:37,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:37,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:37,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:37,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:37,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:37,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:37,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:37,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:37,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:37,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:37,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:37,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:37,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:37,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:37,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:37,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:37,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:37,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:37,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:37,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:37,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:37,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:37,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:37,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:37,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:37,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:37,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:37,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:37,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:37,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:11:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:37,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:37,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:37,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:37,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:37,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:37,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:37,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:37,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:11:37,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:37,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:11:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:37,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:37,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:37,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:37,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:37,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:11:37,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:37,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:37,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:37,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:37,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:37,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:37,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:11:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:37,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:37,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:37,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:37,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:37,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:37,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:37,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:37,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:37,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:37,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:37,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:11:37,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617454985] [2020-09-25 05:11:37,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:11:37,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:11:37,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5026708] [2020-09-25 05:11:37,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:11:37,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:37,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:11:37,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:11:37,596 INFO L87 Difference]: Start difference. First operand 202 states and 214 transitions. Second operand 6 states. [2020-09-25 05:11:38,164 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:11:39,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:39,661 INFO L93 Difference]: Finished difference Result 452 states and 530 transitions. [2020-09-25 05:11:39,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:11:39,662 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 05:11:39,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:39,666 INFO L225 Difference]: With dead ends: 452 [2020-09-25 05:11:39,666 INFO L226 Difference]: Without dead ends: 365 [2020-09-25 05:11:39,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:11:39,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-09-25 05:11:39,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 273. [2020-09-25 05:11:39,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-25 05:11:39,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 296 transitions. [2020-09-25 05:11:39,725 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 296 transitions. Word has length 162 [2020-09-25 05:11:39,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:39,726 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 296 transitions. [2020-09-25 05:11:39,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:11:39,726 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 296 transitions. [2020-09-25 05:11:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 05:11:39,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:39,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:11:39,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:11:39,730 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:39,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:39,731 INFO L82 PathProgramCache]: Analyzing trace with hash 424813737, now seen corresponding path program 1 times [2020-09-25 05:11:39,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:39,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612070071] [2020-09-25 05:11:39,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:11:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:39,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:40,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:41,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:41,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:44,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:44,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 05:11:44,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:11:44,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 05:11:44,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:44,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:44,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:11:44,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 05:11:44,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 05:11:44,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:45,114 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:45,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:45,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:45,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:45,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:45,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:45,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 05:11:45,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:45,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:45,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:45,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:45,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:45,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:45,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:45,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:45,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:45,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:45,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:45,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:45,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:45,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:45,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:45,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:45,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:45,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:45,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:45,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:45,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:45,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:45,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:45,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:45,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:45,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:45,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:45,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:45,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:45,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:45,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:45,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:45,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:45,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:45,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:45,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:45,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:45,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:45,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:45,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:45,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:45,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:45,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:45,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:45,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:45,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:45,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:45,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:45,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:45,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:45,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:45,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:45,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:45,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:45,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:45,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:45,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:11:45,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:45,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:11:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:45,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:45,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:45,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:45,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:45,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:45,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:45,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:45,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:45,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:45,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:11:45,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:45,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:11:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:45,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:45,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:45,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:45,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:45,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:45,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:45,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:45,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:45,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:11:45,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:45,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 05:11:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:45,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:45,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:45,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:45,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:45,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:45,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:45,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:45,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:45,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:45,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:11:45,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:45,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 05:11:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:45,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:45,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:45,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:45,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:45,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:45,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:45,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:45,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:45,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:45,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:11:45,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:45,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:11:45,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612070071] [2020-09-25 05:11:45,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:11:45,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:11:45,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025288343] [2020-09-25 05:11:45,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:11:45,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:45,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:11:45,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:11:45,356 INFO L87 Difference]: Start difference. First operand 273 states and 296 transitions. Second operand 6 states. [2020-09-25 05:11:45,971 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:11:47,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:47,838 INFO L93 Difference]: Finished difference Result 607 states and 740 transitions. [2020-09-25 05:11:47,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:11:47,838 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-09-25 05:11:47,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:47,851 INFO L225 Difference]: With dead ends: 607 [2020-09-25 05:11:47,851 INFO L226 Difference]: Without dead ends: 604 [2020-09-25 05:11:47,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:11:47,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-09-25 05:11:47,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 434. [2020-09-25 05:11:47,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-09-25 05:11:47,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 483 transitions. [2020-09-25 05:11:47,976 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 483 transitions. Word has length 165 [2020-09-25 05:11:47,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:47,978 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 483 transitions. [2020-09-25 05:11:47,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:11:47,979 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 483 transitions. [2020-09-25 05:11:47,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 05:11:47,987 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:47,988 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:11:47,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:11:47,989 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:47,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:47,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1785871732, now seen corresponding path program 1 times [2020-09-25 05:11:47,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:47,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625341924] [2020-09-25 05:11:47,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:11:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:48,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:48,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:48,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:50,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 05:11:53,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:11:53,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 05:11:53,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:11:53,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-25 05:11:53,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:11:53,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:53,417 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:53,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:53,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 05:11:53,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:53,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:53,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:53,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:53,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:53,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:53,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:53,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:53,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:53,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:53,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:53,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:53,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:53,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:53,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:53,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:53,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:53,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:53,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:53,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:53,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:53,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:53,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:53,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:53,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:53,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:53,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:53,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:11:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:53,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:53,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:53,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:53,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:53,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 05:11:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 05:11:53,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:11:53,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 05:11:53,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:11:53,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 05:11:53,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:53,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:11:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:53,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:53,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:53,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:11:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 05:11:53,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 05:11:53,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:11:53,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 05:11:53,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:53,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:11:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:53,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:53,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:53,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:53,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:53,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 05:11:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:53,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:53,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:11:53,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:11:53,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:53,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 05:11:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:53,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:53,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:53,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:53,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:11:53,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:53,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 05:11:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:53,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:53,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:53,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:53,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:53,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:53,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:53,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:53,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 05:11:53,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:53,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:54,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 05:11:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:54,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:54,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:54,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:54,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:54,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:54,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:54,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:54,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:54,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:54,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:54,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 05:11:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:54,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:54,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:54,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:54,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:54,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:54,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:54,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:54,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:54,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:54,066 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 05:11:54,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625341924] [2020-09-25 05:11:54,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:11:54,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 05:11:54,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923553225] [2020-09-25 05:11:54,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 05:11:54,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:54,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 05:11:54,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:11:54,069 INFO L87 Difference]: Start difference. First operand 434 states and 483 transitions. Second operand 11 states. [2020-09-25 05:11:55,292 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:11:56,183 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:11:56,531 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:11:56,906 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:11:57,234 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:11:57,556 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 05:11:57,877 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 05:11:58,235 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 05:11:58,556 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:11:58,882 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 05:11:59,293 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-25 05:11:59,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:59,858 INFO L93 Difference]: Finished difference Result 1092 states and 1332 transitions. [2020-09-25 05:11:59,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 05:11:59,859 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 218 [2020-09-25 05:11:59,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:59,865 INFO L225 Difference]: With dead ends: 1092 [2020-09-25 05:11:59,865 INFO L226 Difference]: Without dead ends: 773 [2020-09-25 05:11:59,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=230, Invalid=640, Unknown=0, NotChecked=0, Total=870 [2020-09-25 05:11:59,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-09-25 05:11:59,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 603. [2020-09-25 05:11:59,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 05:11:59,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 680 transitions. [2020-09-25 05:11:59,955 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 680 transitions. Word has length 218 [2020-09-25 05:11:59,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:59,956 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 680 transitions. [2020-09-25 05:11:59,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 05:11:59,956 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 680 transitions. [2020-09-25 05:11:59,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-25 05:11:59,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:59,963 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:11:59,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:11:59,964 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:59,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:59,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1982001904, now seen corresponding path program 1 times [2020-09-25 05:11:59,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:59,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226040188] [2020-09-25 05:11:59,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:00,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:00,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:00,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:01,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:02,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking...