/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=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:28:49,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:28:49,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:28:49,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:28:49,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:28:49,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:28:49,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:28:49,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:28:49,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:28:49,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:28:49,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:28:49,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:28:49,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:28:49,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:28:49,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:28:49,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:28:49,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:28:49,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:28:49,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:28:49,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:28:49,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:28:49,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:28:49,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:28:49,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:28:49,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:28:49,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:28:49,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:28:49,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:28:49,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:28:49,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:28:49,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:28:49,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:28:49,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:28:49,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:28:49,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:28:49,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:28:49,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:28:49,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:28:49,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:28:49,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:28:49,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:28:49,783 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 06:28:49,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:28:49,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:28:49,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:28:49,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:28:49,812 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:28:49,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:28:49,812 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:28:49,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:28:49,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:28:49,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:28:49,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:28:49,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:28:49,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:28:49,814 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:28:49,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:28:49,814 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:28:49,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:28:49,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:28:49,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:28:49,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:28:49,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:28:49,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:28:49,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:28:49,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:28:49,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:28:49,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:28:49,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:28:49,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:28:49,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:28:49,817 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:28:50,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:28:50,302 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:28:50,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:28:50,309 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:28:50,310 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:28:50,312 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product07.cil.c [2020-09-25 06:28:50,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25e8ae4d7/b1fa6c07435c4dc1b1ae035415f89975/FLAGf274ea06a [2020-09-25 06:28:51,089 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:28:51,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product07.cil.c [2020-09-25 06:28:51,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25e8ae4d7/b1fa6c07435c4dc1b1ae035415f89975/FLAGf274ea06a [2020-09-25 06:28:51,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25e8ae4d7/b1fa6c07435c4dc1b1ae035415f89975 [2020-09-25 06:28:51,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:28:51,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:28:51,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:28:51,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:28:51,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:28:51,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:28:51" (1/1) ... [2020-09-25 06:28:51,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:51, skipping insertion in model container [2020-09-25 06:28:51,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:28:51" (1/1) ... [2020-09-25 06:28:51,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:28:51,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:28:51,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:28:51,756 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:28:51,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:28:51,989 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:28:51,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:51 WrapperNode [2020-09-25 06:28:51,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:28:51,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:28:51,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:28:51,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:28:52,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:51" (1/1) ... [2020-09-25 06:28:52,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:51" (1/1) ... [2020-09-25 06:28:52,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:51" (1/1) ... [2020-09-25 06:28:52,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:51" (1/1) ... [2020-09-25 06:28:52,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:51" (1/1) ... [2020-09-25 06:28:52,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:51" (1/1) ... [2020-09-25 06:28:52,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:51" (1/1) ... [2020-09-25 06:28:52,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:28:52,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:28:52,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:28:52,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:28:52,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:51" (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 06:28:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:28:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:28:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:28:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:28:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:28:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:28:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:28:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:28:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:28:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:28:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:28:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:28:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:28:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:28:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 06:28:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 06:28:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 06:28:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:28:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:28:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:28:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:28:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:28:52,177 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:28:52,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:28:52,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:28:52,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:28:52,177 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:28:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:28:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:28:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:28:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:28:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:28:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:28:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:28:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:28:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:28:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:28:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:28:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:28:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:28:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:28:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:28:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:28:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:28:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:28:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:28:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:28:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:28:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 06:28:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:28:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:28:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:28:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:28:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:28:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:28:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:28:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:28:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:28:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:28:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:28:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:28:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:28:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 06:28:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 06:28:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:28:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:28:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:28:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:28:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:28:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:28:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:28:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:28:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:28:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:28:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:28:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:28:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:28:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:28:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:28:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:28:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:28:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:28:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:28:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:28:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:28:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:28:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:28:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:28:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:28:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:28:53,405 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:28:53,406 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:28:53,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:28:53 BoogieIcfgContainer [2020-09-25 06:28:53,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:28:53,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:28:53,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:28:53,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:28:53,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:28:51" (1/3) ... [2020-09-25 06:28:53,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649e76ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:28:53, skipping insertion in model container [2020-09-25 06:28:53,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:28:51" (2/3) ... [2020-09-25 06:28:53,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649e76ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:28:53, skipping insertion in model container [2020-09-25 06:28:53,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:28:53" (3/3) ... [2020-09-25 06:28:53,431 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product07.cil.c [2020-09-25 06:28:53,443 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:28:53,457 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:28:53,480 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:28:53,509 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:28:53,509 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:28:53,509 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:28:53,510 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:28:53,510 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:28:53,510 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:28:53,510 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:28:53,510 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:28:53,537 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states. [2020-09-25 06:28:53,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 06:28:53,556 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:28:53,557 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:28:53,558 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:28:53,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:28:53,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1976850470, now seen corresponding path program 1 times [2020-09-25 06:28:53,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:28:53,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977383211] [2020-09-25 06:28:53,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:28:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:54,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:54,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:55,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:56,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:58,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 06:28:59,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:28:59,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5119 [2020-09-25 06:28:59,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:28:59,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 06:28:59,610 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:28:59,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:28:59,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 06:28:59,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:28:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:59,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:28:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:59,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:28:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:59,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:28:59,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:28:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:28:59,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:28:59,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:28:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:28:59,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:59,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:28:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:28:59,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:28:59,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:28:59,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:28:59,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:28:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:59,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:59,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:28:59,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:28:59,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 06:28:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:59,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:59,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 06:28:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:28:59,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:28:59,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:28:59,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:28:59,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:28:59,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:28:59,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:28:59,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:28:59,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:28:59,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:28:59,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:28:59,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:28:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:28:59,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977383211] [2020-09-25 06:28:59,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:28:59,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:28:59,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512728195] [2020-09-25 06:29:00,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:29:00,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:29:00,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:29:00,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:29:00,041 INFO L87 Difference]: Start difference. First operand 288 states. Second operand 4 states. [2020-09-25 06:29:01,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:29:01,459 INFO L93 Difference]: Finished difference Result 434 states and 513 transitions. [2020-09-25 06:29:01,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:29:01,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 06:29:01,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:29:01,501 INFO L225 Difference]: With dead ends: 434 [2020-09-25 06:29:01,502 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 06:29:01,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:29:01,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 06:29:01,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 237. [2020-09-25 06:29:01,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-25 06:29:01,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 257 transitions. [2020-09-25 06:29:01,691 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 257 transitions. Word has length 160 [2020-09-25 06:29:01,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:29:01,694 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 257 transitions. [2020-09-25 06:29:01,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:29:01,694 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 257 transitions. [2020-09-25 06:29:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:29:01,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:29:01,705 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:29:01,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:29:01,705 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:29:01,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:29:01,706 INFO L82 PathProgramCache]: Analyzing trace with hash 150247797, now seen corresponding path program 1 times [2020-09-25 06:29:01,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:29:01,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088283210] [2020-09-25 06:29:01,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:29:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:01,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:01,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:03,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:04,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:05,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:06,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:06,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 06:29:06,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:29:06,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 06:29:06,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:06,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:29:06,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:29:06,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:07,097 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:29:07,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:29:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:07,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:07,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:07,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:29:07,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:07,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 06:29:07,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:07,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:07,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:07,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:07,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:07,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:07,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:29:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:07,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:07,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:07,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:07,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:07,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:07,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:07,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:07,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:07,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:07,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:07,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:07,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:29:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:07,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:07,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:07,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:07,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:07,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:07,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:07,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:07,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:07,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:07,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:07,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:29:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:07,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:07,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:07,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:07,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:07,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:29:07,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:07,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:07,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:07,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:07,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:07,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:07,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:29:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:07,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:07,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:07,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:07,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:07,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:29:07,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:07,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:07,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:07,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:07,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:07,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:07,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:29:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:07,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:07,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:07,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:29:07,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:07,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:07,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:07,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:07,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:29:07,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:29:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:07,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:07,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:07,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:29:07,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:07,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:29:07,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:07,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:07,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:07,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:29:07,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:07,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:07,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:29:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:07,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:07,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:07,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:07,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:07,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:07,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:07,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:07,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:29:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:07,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:07,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:07,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:07,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:07,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:07,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:07,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:29:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:07,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:07,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:29:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:07,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:07,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:07,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:07,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:07,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:29:07,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:07,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:07,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:07,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:29:07,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:07,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:07,351 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:29:07,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088283210] [2020-09-25 06:29:07,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:29:07,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:29:07,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45287029] [2020-09-25 06:29:07,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:29:07,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:29:07,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:29:07,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:29:07,357 INFO L87 Difference]: Start difference. First operand 237 states and 257 transitions. Second operand 5 states. [2020-09-25 06:29:08,051 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:08,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:29:08,797 INFO L93 Difference]: Finished difference Result 357 states and 401 transitions. [2020-09-25 06:29:08,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:29:08,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 06:29:08,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:29:08,802 INFO L225 Difference]: With dead ends: 357 [2020-09-25 06:29:08,802 INFO L226 Difference]: Without dead ends: 271 [2020-09-25 06:29:08,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:29:08,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-25 06:29:08,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 227. [2020-09-25 06:29:08,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 06:29:08,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 244 transitions. [2020-09-25 06:29:08,846 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 244 transitions. Word has length 161 [2020-09-25 06:29:08,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:29:08,847 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 244 transitions. [2020-09-25 06:29:08,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:29:08,847 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 244 transitions. [2020-09-25 06:29:08,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 06:29:08,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:29:08,850 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:29:08,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:29:08,851 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:29:08,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:29:08,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1684061971, now seen corresponding path program 1 times [2020-09-25 06:29:08,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:29:08,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295873765] [2020-09-25 06:29:08,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:29:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:08,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:09,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:12,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:13,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:13,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 06:29:13,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:29:13,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-25 06:29:13,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:13,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:13,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:29:13,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 06:29:13,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 06:29:13,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:14,381 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:29:14,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:29:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:14,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:14,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:14,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:29:14,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:14,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 06:29:14,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:14,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:14,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:29:14,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:14,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:29:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:14,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:14,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:14,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:14,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:14,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:14,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:14,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:29:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:14,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:29:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:14,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:14,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:14,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:14,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:14,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:14,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:14,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:14,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:29:14,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:14,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:29:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:14,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:14,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:14,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:14,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:14,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:29:14,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:14,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:14,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:14,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:29:14,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:14,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:29:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:14,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:14,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:14,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:14,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:14,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:14,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:14,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:29:14,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:14,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:29:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:14,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:14,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:14,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:29:14,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:14,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:29:14,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:14,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:14,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:14,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:29:14,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:14,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:29:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:14,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:14,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:14,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:29:14,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:14,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:29:14,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:14,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:14,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:14,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:14,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 06:29:14,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:14,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:29:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:14,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:14,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:14,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:14,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:14,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:29:14,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:14,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:14,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:14,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:14,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:14,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:14,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 06:29:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:14,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:14,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:14,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:14,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:14,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:14,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:14,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:14,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:14,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:29:14,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:14,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:29:14,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 06:29:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:14,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:14,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:14,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:14,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:14,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:14,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:14,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:29:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:14,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:29:14,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1295873765] [2020-09-25 06:29:14,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:29:14,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:29:14,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009055784] [2020-09-25 06:29:14,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:29:14,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:29:14,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:29:14,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:29:14,837 INFO L87 Difference]: Start difference. First operand 227 states and 244 transitions. Second operand 5 states. [2020-09-25 06:29:15,393 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:29:16,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:29:16,741 INFO L93 Difference]: Finished difference Result 501 states and 572 transitions. [2020-09-25 06:29:16,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:29:16,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-25 06:29:16,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:29:16,746 INFO L225 Difference]: With dead ends: 501 [2020-09-25 06:29:16,746 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 06:29:16,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:29:16,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 06:29:16,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 333. [2020-09-25 06:29:16,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-09-25 06:29:16,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 368 transitions. [2020-09-25 06:29:16,819 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 368 transitions. Word has length 170 [2020-09-25 06:29:16,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:29:16,820 INFO L479 AbstractCegarLoop]: Abstraction has 333 states and 368 transitions. [2020-09-25 06:29:16,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:29:16,820 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 368 transitions. [2020-09-25 06:29:16,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 06:29:16,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:29:16,823 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:29:16,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:29:16,824 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:29:16,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:29:16,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1188214926, now seen corresponding path program 1 times [2020-09-25 06:29:16,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:29:16,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291226163] [2020-09-25 06:29:16,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:29:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:16,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:17,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:17,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:19,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:21,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:21,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 06:29:21,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:29:21,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 06:29:21,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:21,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:21,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:29:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 06:29:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 06:29:21,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:29:22,358 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:29:22,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:29:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:29:22,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:22,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 06:29:22,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:22,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:22,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:29:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:22,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:22,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:22,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:22,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:29:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:22,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:22,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:22,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:22,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:29:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:22,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:22,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:29:22,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:22,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:29:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:22,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:22,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:22,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:22,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:22,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:29:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:29:22,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:22,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:22,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:22,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:22,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:29:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:29:22,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:22,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:29:22,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:22,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:22,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:29:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:22,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:22,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:29:22,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:29:22,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:29:22,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:29:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:29:22,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:29:22,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:29:22,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:29:22,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:29:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:29:22,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:22,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:29:22,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:22,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:29:22,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 06:29:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:22,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:22,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:29:22,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:29:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:29:22,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 06:29:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:29:22,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:29:22,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:29:22,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:29:22,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:29:22,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 06:29:22,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:29:22,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:29:22,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:29:22,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:29:22,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:29:22,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:29:22,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:29:22,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291226163] [2020-09-25 06:29:22,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:29:22,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:29:22,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144078146] [2020-09-25 06:29:22,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:29:22,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:29:22,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:29:22,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:29:22,868 INFO L87 Difference]: Start difference. First operand 333 states and 368 transitions. Second operand 10 states. [2020-09-25 06:29:23,435 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:24,293 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:29:24,651 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 06:29:25,555 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:29:25,905 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 06:29:26,229 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 06:29:26,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:29:26,267 INFO L93 Difference]: Finished difference Result 534 states and 624 transitions. [2020-09-25 06:29:26,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:29:26,268 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 178 [2020-09-25 06:29:26,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:29:26,269 INFO L225 Difference]: With dead ends: 534 [2020-09-25 06:29:26,269 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:29:26,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:29:26,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:29:26,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:29:26,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:29:26,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:29:26,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2020-09-25 06:29:26,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:29:26,274 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:29:26,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:29:26,274 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:29:26,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:29:26,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:29:26,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:29:26,480 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:26,643 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:26,773 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 9 [2020-09-25 06:29:26,950 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:27,065 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 9 [2020-09-25 06:29:27,227 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:27,396 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:27,557 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:27,721 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:27,875 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:28,037 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:28,195 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:28,348 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:28,509 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:28,620 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-25 06:29:28,765 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:29:28,918 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:29,080 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:29,238 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:29,397 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:29,552 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:29,710 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:29,863 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:30,024 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:30,179 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:30,340 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:30,500 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:30,653 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:30,805 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:30,963 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:31,121 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:31,279 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:31,444 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:31,628 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:31,780 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:31,943 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:32,097 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:32,256 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:32,409 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:32,566 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:32,736 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:33,001 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 9 [2020-09-25 06:29:33,165 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:33,328 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:33,486 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:33,648 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:33,806 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:33,958 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:34,064 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-25 06:29:34,221 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:34,380 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:34,568 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:34,726 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:34,884 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:29:35,038 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:29:35,464 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 9 [2020-09-25 06:29:35,719 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 06:29:35,955 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 06:29:36,171 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 06:29:36,412 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 06:29:36,615 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 06:29:36,869 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 06:29:37,180 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:29:37,611 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 16 [2020-09-25 06:29:37,811 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 06:29:38,026 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-25 06:29:38,440 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 10 [2020-09-25 06:29:38,831 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 9 [2020-09-25 06:29:39,246 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 10 [2020-09-25 06:29:39,663 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 10 [2020-09-25 06:29:39,934 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 06:29:40,189 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 06:29:40,408 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 14 [2020-09-25 06:29:40,644 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 06:29:40,892 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 06:29:41,101 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1