/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:15:11,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:15:11,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:15:11,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:15:11,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:15:11,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:15:11,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:15:11,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:15:11,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:15:11,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:15:11,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:15:11,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:15:11,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:15:11,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:15:11,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:15:11,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:15:11,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:15:11,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:15:11,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:15:11,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:15:11,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:15:11,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:15:11,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:15:11,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:15:11,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:15:11,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:15:11,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:15:11,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:15:11,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:15:11,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:15:11,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:15:11,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:15:11,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:15:11,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:15:11,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:15:11,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:15:11,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:15:11,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:15:11,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:15:11,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:15:11,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:15:11,147 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 13:15:11,193 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:15:11,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:15:11,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:15:11,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:15:11,197 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:15:11,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:15:11,198 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:15:11,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:15:11,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:15:11,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:15:11,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:15:11,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:15:11,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:15:11,200 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:15:11,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:15:11,201 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:15:11,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:15:11,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:15:11,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:15:11,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:15:11,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:15:11,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:15:11,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:15:11,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:15:11,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:15:11,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:15:11,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:15:11,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:15:11,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:15:11,208 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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:15:11,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:15:11,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:15:11,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:15:11,697 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:15:11,698 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:15:11,699 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-09-25 13:15:11,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83a81b320/9b2f0c71996a4117a1e02f3e41b13d59/FLAG92140e3b4 [2020-09-25 13:15:12,409 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:15:12,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-09-25 13:15:12,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83a81b320/9b2f0c71996a4117a1e02f3e41b13d59/FLAG92140e3b4 [2020-09-25 13:15:12,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83a81b320/9b2f0c71996a4117a1e02f3e41b13d59 [2020-09-25 13:15:12,709 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:15:12,716 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:15:12,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:15:12,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:15:12,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:15:12,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:15:12" (1/1) ... [2020-09-25 13:15:12,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657b60e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:12, skipping insertion in model container [2020-09-25 13:15:12,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:15:12" (1/1) ... [2020-09-25 13:15:12,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:15:12,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:15:13,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:15:13,413 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:15:13,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:15:13,539 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:15:13,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:13 WrapperNode [2020-09-25 13:15:13,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:15:13,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:15:13,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:15:13,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:15:13,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:13" (1/1) ... [2020-09-25 13:15:13,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:13" (1/1) ... [2020-09-25 13:15:13,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:13" (1/1) ... [2020-09-25 13:15:13,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:13" (1/1) ... [2020-09-25 13:15:13,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:13" (1/1) ... [2020-09-25 13:15:13,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:13" (1/1) ... [2020-09-25 13:15:13,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:13" (1/1) ... [2020-09-25 13:15:13,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:15:13,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:15:13,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:15:13,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:15:13,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:13" (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 13:15:13,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:15:13,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:15:13,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:15:13,755 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:15:13,755 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:15:13,756 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:15:13,756 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:15:13,756 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:15:13,756 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 13:15:13,756 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:15:13,757 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:15:13,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:15:13,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:15:13,757 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:15:13,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:15:13,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:15:13,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:15:13,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:15:13,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:15:13,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:15:13,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:15:13,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:15:13,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:15:13,759 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:15:13,759 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:15:13,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:15:13,760 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:15:13,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:15:13,760 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:15:13,760 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:15:13,760 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:15:13,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:15:13,761 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:15:13,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:15:13,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:15:13,761 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:15:13,761 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:15:13,762 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:15:13,762 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:15:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:15:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:15:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:15:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:15:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:15:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:15:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:15:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:15:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:15:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:15:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:15:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:15:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:15:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:15:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:15:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:15:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:15:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:15:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:15:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:15:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:15:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:15:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 13:15:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:15:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:15:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:15:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:15:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:15:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:15:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:15:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:15:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:15:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:15:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:15:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:15:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:15:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:15:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:15:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:15:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:15:13,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:15:13,769 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:15:13,769 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:15:13,769 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:15:13,769 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:15:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:15:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:15:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:15:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:15:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:15:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:15:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:15:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:15:14,904 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:15:14,905 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:15:14,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:15:14 BoogieIcfgContainer [2020-09-25 13:15:14,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:15:14,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:15:14,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:15:14,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:15:14,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:15:12" (1/3) ... [2020-09-25 13:15:14,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8df5629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:15:14, skipping insertion in model container [2020-09-25 13:15:14,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:15:13" (2/3) ... [2020-09-25 13:15:14,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8df5629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:15:14, skipping insertion in model container [2020-09-25 13:15:14,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:15:14" (3/3) ... [2020-09-25 13:15:14,922 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.c [2020-09-25 13:15:14,934 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:15:14,945 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:15:14,968 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:15:15,002 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:15:15,002 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:15:15,002 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:15:15,002 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:15:15,003 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:15:15,003 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:15:15,003 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:15:15,003 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:15:15,032 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-25 13:15:15,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:15:15,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:15,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:15:15,052 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:15,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:15,060 INFO L82 PathProgramCache]: Analyzing trace with hash 2095519096, now seen corresponding path program 1 times [2020-09-25 13:15:15,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:15,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811835264] [2020-09-25 13:15:15,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:15,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:15,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:16,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:17,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:17,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:20,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:20,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:15:20,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:15:20,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 13:15:20,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:20,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:15:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 13:15:20,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:15:20,903 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:20,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:20,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:21,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:21,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:21,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:21,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 13:15:21,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:21,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:21,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:21,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:21,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:15:21,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:21,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:21,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:21,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:21,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:21,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:21,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:21,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:21,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:21,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:21,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:21,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:21,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:21,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:21,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:21,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:21,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:21,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:21,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:21,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:21,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:21,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:21,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:21,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:21,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:21,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:21,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:21,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:21,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:21,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:21,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:15:21,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:21,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:21,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:21,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:21,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:21,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:21,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:21,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:21,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:21,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:21,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:21,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:21,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:21,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:21,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:21,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:15:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:21,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:21,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:21,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:21,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:21,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:21,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:21,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:21,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:15:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:21,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:21,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:21,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:21,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:21,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:21,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:21,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:21,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:21,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:21,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811835264] [2020-09-25 13:15:21,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:21,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:15:21,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198511848] [2020-09-25 13:15:21,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:15:21,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:21,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:15:21,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:15:21,466 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 4 states. [2020-09-25 13:15:22,303 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:24,437 INFO L93 Difference]: Finished difference Result 497 states and 590 transitions. [2020-09-25 13:15:24,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:15:24,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:15:24,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:24,477 INFO L225 Difference]: With dead ends: 497 [2020-09-25 13:15:24,477 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 13:15:24,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:15:24,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 13:15:24,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264. [2020-09-25 13:15:24,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-25 13:15:24,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-09-25 13:15:24,662 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 142 [2020-09-25 13:15:24,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:24,663 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-09-25 13:15:24,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:15:24,663 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-09-25 13:15:24,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 13:15:24,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:24,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:15:24,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:15:24,670 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:24,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:24,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2103188336, now seen corresponding path program 1 times [2020-09-25 13:15:24,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:24,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604601922] [2020-09-25 13:15:24,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:24,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:24,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:25,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:26,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:28,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:29,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:29,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 13:15:29,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:15:29,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 13:15:29,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:29,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:15:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:15:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 13:15:29,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:30,198 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:30,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:30,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:30,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:30,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:30,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:30,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 13:15:30,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:30,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:30,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:30,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:30,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:15:30,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:30,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:30,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:30,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:30,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:30,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:30,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:30,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:30,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:30,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:30,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:30,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:30,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:30,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:30,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:30,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:30,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:30,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:30,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:30,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:30,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:30,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:30,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:30,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:30,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:30,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:30,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:30,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:15:30,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:30,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:30,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:30,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:30,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:30,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:30,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:30,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:30,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:30,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:30,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:30,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:30,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:30,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:30,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:30,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 13:15:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:30,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:30,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:30,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:30,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:30,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:30,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 13:15:30,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:30,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:15:30,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:30,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:30,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:30,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:30,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:15:30,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:30,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:30,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:30,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:30,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:30,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:30,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:30,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:30,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:30,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:30,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:30,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:30,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:30,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:30,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:30,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:30,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:30,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:30,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:30,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:30,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 13:15:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:30,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:30,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:30,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:30,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:30,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:15:30,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:30,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:30,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:30,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:30,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:30,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:30,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 13:15:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:30,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:30,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:30,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:30,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:30,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:30,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:30,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:30,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:30,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:30,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:30,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:30,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604601922] [2020-09-25 13:15:30,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:30,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:15:30,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804954647] [2020-09-25 13:15:30,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:15:30,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:30,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:15:30,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:15:30,760 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 10 states. [2020-09-25 13:15:31,299 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:33,195 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 13:15:33,796 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:15:34,165 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:15:34,487 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:15:34,804 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:15:35,131 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:15:35,487 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:15:36,090 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:15:38,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:38,303 INFO L93 Difference]: Finished difference Result 676 states and 866 transitions. [2020-09-25 13:15:38,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:15:38,304 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-09-25 13:15:38,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:38,313 INFO L225 Difference]: With dead ends: 676 [2020-09-25 13:15:38,313 INFO L226 Difference]: Without dead ends: 522 [2020-09-25 13:15:38,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:15:38,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2020-09-25 13:15:38,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 415. [2020-09-25 13:15:38,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-09-25 13:15:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 477 transitions. [2020-09-25 13:15:38,406 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 477 transitions. Word has length 165 [2020-09-25 13:15:38,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:38,407 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 477 transitions. [2020-09-25 13:15:38,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:15:38,407 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 477 transitions. [2020-09-25 13:15:38,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 13:15:38,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:38,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:15:38,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:15:38,412 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:38,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:38,413 INFO L82 PathProgramCache]: Analyzing trace with hash -2050215891, now seen corresponding path program 1 times [2020-09-25 13:15:38,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:38,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848510451] [2020-09-25 13:15:38,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:38,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:38,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:38,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:39,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:39,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:43,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:43,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 13:15:43,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:15:43,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 13:15:43,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:43,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:15:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:15:43,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 13:15:43,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:43,881 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:43,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:43,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:44,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:44,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:44,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-25 13:15:44,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:44,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:44,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:44,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:44,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:15:44,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:44,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:44,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:44,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:44,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:44,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:44,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:44,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:44,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:44,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:44,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:44,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:15:44,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:44,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:44,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:44,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:44,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:44,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:44,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:44,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:44,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:44,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:44,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:44,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:44,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:44,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:44,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:44,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 13:15:44,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:44,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:44,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:44,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:44,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:44,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:44,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:44,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:44,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:44,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:44,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:44,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:44,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:44,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 13:15:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:44,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:44,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:44,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:44,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:44,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:44,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:44,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:15:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:44,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:44,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 13:15:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:44,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:44,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:44,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:44,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:15:44,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:44,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:44,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:15:44,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 13:15:44,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:15:44,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:44,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:44,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:44,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:15:44,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:44,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:15:44,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:44,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:15:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:15:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:15:44,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:44,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:44,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:44,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:44,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:44,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:44,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:44,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:44,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:44,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:15:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:44,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:44,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:44,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:44,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:44,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:44,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:44,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:44,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 13:15:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:44,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:44,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:44,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:44,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:44,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:44,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:44,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:44,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:44,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:44,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848510451] [2020-09-25 13:15:44,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:44,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:15:44,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350570471] [2020-09-25 13:15:44,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:15:44,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:44,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:15:44,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:15:44,434 INFO L87 Difference]: Start difference. First operand 415 states and 477 transitions. Second operand 8 states. [2020-09-25 13:15:44,957 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:46,534 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:15:48,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:48,663 INFO L93 Difference]: Finished difference Result 1104 states and 1494 transitions. [2020-09-25 13:15:48,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:15:48,663 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-09-25 13:15:48,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:48,671 INFO L225 Difference]: With dead ends: 1104 [2020-09-25 13:15:48,672 INFO L226 Difference]: Without dead ends: 799 [2020-09-25 13:15:48,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:15:48,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2020-09-25 13:15:48,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 605. [2020-09-25 13:15:48,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-09-25 13:15:48,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 714 transitions. [2020-09-25 13:15:48,776 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 714 transitions. Word has length 161 [2020-09-25 13:15:48,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:48,777 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 714 transitions. [2020-09-25 13:15:48,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:15:48,777 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 714 transitions. [2020-09-25 13:15:48,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-25 13:15:48,783 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:48,783 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:48,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:15:48,784 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:48,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:48,784 INFO L82 PathProgramCache]: Analyzing trace with hash -175510775, now seen corresponding path program 1 times [2020-09-25 13:15:48,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:48,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616134984] [2020-09-25 13:15:48,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:48,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:49,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:49,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:49,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:49,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:53,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:53,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-09-25 13:15:53,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:15:53,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 13:15:53,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:53,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:53,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 13:15:53,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:15:53,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 209 [2020-09-25 13:15:53,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:54,264 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:54,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:54,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:54,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:54,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:54,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:54,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-25 13:15:54,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:54,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:15:54,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:54,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:54,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:54,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:54,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:54,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:54,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:54,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:54,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:54,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:54,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:54,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:54,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:54,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:54,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:54,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:54,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:54,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:54,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:54,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:54,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:54,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:54,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:54,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:54,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:54,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:54,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:54,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:54,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:15:54,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:54,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:54,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:54,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:54,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:54,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:54,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:54,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:54,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:54,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:54,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:54,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:54,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:54,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:54,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 13:15:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:54,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:54,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:55,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 13:15:56,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:15:56,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1315 [2020-09-25 13:15:56,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-25 13:15:56,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 13:15:56,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:56,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 13:15:56,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 13:15:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:15:56,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 13:15:56,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 13:15:56,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:15:56,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:15:56,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:15:56,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 13:15:56,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:56,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:15:56,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:56,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:15:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:15:56,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:56,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:56,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:56,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:56,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:15:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 13:15:56,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:15:56,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:56,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 13:15:56,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:56,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:15:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:15:56,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:56,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:56,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:56,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:56,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:15:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:56,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:56,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:56,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:56,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 13:15:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:15:56,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:56,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:56,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:56,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-25 13:15:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:56,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:15:56,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:56,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:56,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:56,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:56,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:56,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:15:56,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 13:15:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:56,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:15:56,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:15:56,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 13:15:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 13:15:56,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 13:15:56,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:15:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 13:15:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 13:15:56,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:56,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:15:56,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:15:56,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:15:56,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 13:15:56,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:15:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:56,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:56,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:15:56,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:15:56,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-25 13:15:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:15:56,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:56,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:15:56,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:56,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-09-25 13:15:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:56,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:56,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:56,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:56,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:56,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:56,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:56,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:57,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:57,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-09-25 13:15:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:57,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:57,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:57,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:57,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:57,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:57,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:57,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:57,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:57,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:57,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:57,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 13:15:57,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616134984] [2020-09-25 13:15:57,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:15:57,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 13:15:57,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752342067] [2020-09-25 13:15:57,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 13:15:57,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:57,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 13:15:57,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:15:57,093 INFO L87 Difference]: Start difference. First operand 605 states and 714 transitions. Second operand 20 states. [2020-09-25 13:15:57,673 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:59,192 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187