/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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_spec1_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:01:55,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:01:55,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:01:55,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:01:55,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:01:55,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:01:55,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:01:55,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:01:55,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:01:55,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:01:55,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:01:55,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:01:55,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:01:55,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:01:55,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:01:55,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:01:55,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:01:55,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:01:55,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:01:55,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:01:55,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:01:55,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:01:55,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:01:55,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:01:55,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:01:55,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:01:55,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:01:55,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:01:55,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:01:55,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:01:55,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:01:55,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:01:55,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:01:55,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:01:55,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:01:55,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:01:55,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:01:55,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:01:55,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:01:55,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:01:55,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:01:55,818 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 04:01:55,865 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:01:55,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:01:55,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:01:55,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:01:55,867 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:01:55,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:01:55,867 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:01:55,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:01:55,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:01:55,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:01:55,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:01:55,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:01:55,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:01:55,871 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:01:55,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:01:55,872 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:01:55,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:01:55,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:01:55,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:01:55,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:01:55,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:01:55,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:01:55,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:01:55,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:01:55,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:01:55,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:01:55,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:01:55,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:01:55,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:01:55,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:01:56,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:01:56,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:01:56,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:01:56,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:01:56,369 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:01:56,371 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-25 04:01:56,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e4efcb4d/aa99defdaa3f4a75843c6203ae023e5a/FLAGa6f499164 [2020-09-25 04:01:57,035 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:01:57,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-25 04:01:57,051 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e4efcb4d/aa99defdaa3f4a75843c6203ae023e5a/FLAGa6f499164 [2020-09-25 04:01:57,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e4efcb4d/aa99defdaa3f4a75843c6203ae023e5a [2020-09-25 04:01:57,325 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:01:57,331 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:01:57,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:01:57,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:01:57,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:01:57,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:01:57" (1/1) ... [2020-09-25 04:01:57,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:57, skipping insertion in model container [2020-09-25 04:01:57,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:01:57" (1/1) ... [2020-09-25 04:01:57,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:01:57,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:01:57,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:01:57,770 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:01:57,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:01:57,986 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:01:57,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:57 WrapperNode [2020-09-25 04:01:57,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:01:57,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:01:57,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:01:57,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:01:58,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:57" (1/1) ... [2020-09-25 04:01:58,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:57" (1/1) ... [2020-09-25 04:01:58,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:57" (1/1) ... [2020-09-25 04:01:58,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:57" (1/1) ... [2020-09-25 04:01:58,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:57" (1/1) ... [2020-09-25 04:01:58,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:57" (1/1) ... [2020-09-25 04:01:58,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:57" (1/1) ... [2020-09-25 04:01:58,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:01:58,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:01:58,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:01:58,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:01:58,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:57" (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 04:01:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:01:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:01:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:01:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:01:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:01:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:01:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 04:01:58,183 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:01:58,184 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 04:01:58,184 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:01:58,184 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:01:58,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:01:58,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:01:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:01:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:01:58,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 04:01:58,186 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:01:58,186 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:01:58,187 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:01:58,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:01:58,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:01:58,189 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:01:58,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:01:58,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:01:58,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:01:58,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:01:58,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:01:58,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:01:58,192 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:01:58,192 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:01:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:01:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:01:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:01:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:01:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:01:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:01:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:01:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:01:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:01:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:01:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 04:01:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:01:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:01:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:01:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:01:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:01:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:01:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:01:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:01:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:01:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 04:01:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:01:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:01:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:01:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:01:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:01:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:01:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:01:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:01:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:01:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:01:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:01:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 04:01:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 04:01:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:01:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 04:01:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:01:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:01:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:01:58,201 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:01:58,201 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:01:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:01:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:01:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:01:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:01:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:01:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:01:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:01:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:01:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:01:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:01:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:01:58,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:01:58,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:01:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:01:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:01:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:01:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:01:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:01:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:01:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:01:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:01:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:01:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:01:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:01:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:01:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:01:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:01:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:01:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:01:59,357 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:01:59,357 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:01:59,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:01:59 BoogieIcfgContainer [2020-09-25 04:01:59,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:01:59,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:01:59,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:01:59,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:01:59,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:01:57" (1/3) ... [2020-09-25 04:01:59,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1039ff63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:01:59, skipping insertion in model container [2020-09-25 04:01:59,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:57" (2/3) ... [2020-09-25 04:01:59,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1039ff63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:01:59, skipping insertion in model container [2020-09-25 04:01:59,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:01:59" (3/3) ... [2020-09-25 04:01:59,374 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2020-09-25 04:01:59,385 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:01:59,396 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:01:59,419 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:01:59,454 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:01:59,454 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:01:59,454 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:01:59,454 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:01:59,455 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:01:59,455 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:01:59,455 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:01:59,455 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:01:59,485 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-09-25 04:01:59,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 04:01:59,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:59,507 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 04:01:59,507 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:59,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:59,516 INFO L82 PathProgramCache]: Analyzing trace with hash 978294910, now seen corresponding path program 1 times [2020-09-25 04:01:59,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:59,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808053028] [2020-09-25 04:01:59,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:00,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:00,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:02,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:03,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:04,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:04,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 04:02:04,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:02:04,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-09-25 04:02:04,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:04,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:02:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:04,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:02:05,416 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:02:05,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:02:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:05,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:05,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:05,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:02:05,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:05,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 04:02:05,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:05,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:05,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:05,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:02:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:05,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:05,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:05,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:05,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:05,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:05,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:05,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:05,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:05,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:05,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:02:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:05,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:05,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:05,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:05,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:05,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:05,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:05,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:05,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:05,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:05,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:05,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:02:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:05,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:05,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:05,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:05,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:05,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:02:05,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:05,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:05,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:05,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:02:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:05,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:05,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:05,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:05,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:05,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:05,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:05,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:05,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:05,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:05,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:05,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:05,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:02:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:05,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:05,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:05,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:05,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:05,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:05,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:05,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:05,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:05,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:02:05,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:05,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:05,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:02:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:05,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:05,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:05,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:05,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:05,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:05,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:05,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:02:05,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:05,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:05,725 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 04:02:05,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808053028] [2020-09-25 04:02:05,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:02:05,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:02:05,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800841166] [2020-09-25 04:02:05,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:02:05,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:02:05,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:02:05,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:02:05,757 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 3 states. [2020-09-25 04:02:07,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:02:07,355 INFO L93 Difference]: Finished difference Result 560 states and 667 transitions. [2020-09-25 04:02:07,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:02:07,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 04:02:07,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:02:07,382 INFO L225 Difference]: With dead ends: 560 [2020-09-25 04:02:07,383 INFO L226 Difference]: Without dead ends: 340 [2020-09-25 04:02:07,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:02:07,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-25 04:02:07,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 294. [2020-09-25 04:02:07,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-09-25 04:02:07,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 323 transitions. [2020-09-25 04:02:07,506 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 323 transitions. Word has length 142 [2020-09-25 04:02:07,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:02:07,507 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 323 transitions. [2020-09-25 04:02:07,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:02:07,507 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 323 transitions. [2020-09-25 04:02:07,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 04:02:07,516 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:02:07,516 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] [2020-09-25 04:02:07,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:02:07,517 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:02:07,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:02:07,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1922789208, now seen corresponding path program 1 times [2020-09-25 04:02:07,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:02:07,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821922705] [2020-09-25 04:02:07,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:02:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:07,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:07,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:09,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:09,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:11,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:12,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:12,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:02:12,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:02:12,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 04:02:12,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:12,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:12,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:02:12,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:02:12,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:02:12,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:02:12,910 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:02:12,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:02:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:12,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:13,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:13,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:02:13,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 04:02:13,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:13,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:13,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:02:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:13,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:13,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:13,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:13,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:13,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:13,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:13,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:13,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:13,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:13,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:13,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:13,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:02:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:13,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:13,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:13,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:13,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:13,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:13,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:13,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:13,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:13,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:13,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:13,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:13,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:02:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:13,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:13,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:13,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:13,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:13,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:02:13,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:13,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:13,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:13,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:13,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:13,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:13,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:02:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:13,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:13,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:13,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:13,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:13,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:13,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:13,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:13,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:13,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:13,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:13,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:02:13,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:02:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:13,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:13,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:13,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:13,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:13,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:02:13,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:13,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:13,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:13,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:02:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:13,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:13,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:02:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:13,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:13,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:13,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:13,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:13,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:13,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:13,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:13,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:13,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:02:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:13,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:02:13,162 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 04:02:13,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821922705] [2020-09-25 04:02:13,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:02:13,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:02:13,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064080984] [2020-09-25 04:02:13,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:02:13,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:02:13,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:02:13,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:02:13,169 INFO L87 Difference]: Start difference. First operand 294 states and 323 transitions. Second operand 4 states. [2020-09-25 04:02:13,825 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:02:14,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:02:14,982 INFO L93 Difference]: Finished difference Result 473 states and 538 transitions. [2020-09-25 04:02:14,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:02:14,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 04:02:14,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:02:14,991 INFO L225 Difference]: With dead ends: 473 [2020-09-25 04:02:14,991 INFO L226 Difference]: Without dead ends: 323 [2020-09-25 04:02:14,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:02:14,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-25 04:02:15,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 284. [2020-09-25 04:02:15,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 04:02:15,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 310 transitions. [2020-09-25 04:02:15,073 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 310 transitions. Word has length 143 [2020-09-25 04:02:15,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:02:15,075 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 310 transitions. [2020-09-25 04:02:15,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:02:15,076 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 310 transitions. [2020-09-25 04:02:15,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 04:02:15,078 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:02:15,079 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] [2020-09-25 04:02:15,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:02:15,079 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:02:15,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:02:15,079 INFO L82 PathProgramCache]: Analyzing trace with hash -312592452, now seen corresponding path program 1 times [2020-09-25 04:02:15,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:02:15,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431176226] [2020-09-25 04:02:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:02:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:15,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:15,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:15,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:16,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:20,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:20,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:02:20,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:02:20,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 04:02:20,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:20,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:02:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:02:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:02:20,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:02:20,604 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:02:20,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:02:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:20,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:20,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:20,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:02:20,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:20,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 04:02:20,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:20,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:20,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:20,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:20,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:20,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:20,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:02:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:20,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:20,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:20,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:20,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:20,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:20,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:20,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:20,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:20,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:02:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:20,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:20,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:20,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:20,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:20,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:20,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:20,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:20,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:20,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:20,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:20,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:20,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:02:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:20,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:20,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:20,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:20,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:20,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:02:20,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:20,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:20,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:20,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:20,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:20,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:20,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:02:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:20,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:20,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:20,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:20,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:20,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:20,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:20,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:20,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:20,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:20,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:20,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:20,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:02:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:20,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:20,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:20,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:02:20,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:20,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:02:20,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:20,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:20,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:02:20,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:20,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:02:20,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:20,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 04:02:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:20,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:20,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:20,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:20,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:20,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:20,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:20,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:20,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:02:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:20,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:20,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:02:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:20,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:20,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:20,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:20,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:20,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:02:20,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:20,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:20,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:02:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:20,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:02:20,942 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 04:02:20,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431176226] [2020-09-25 04:02:20,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:02:20,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:02:20,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495938092] [2020-09-25 04:02:20,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:02:20,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:02:20,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:02:20,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:02:20,949 INFO L87 Difference]: Start difference. First operand 284 states and 310 transitions. Second operand 5 states. [2020-09-25 04:02:21,611 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:02:22,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:02:22,785 INFO L93 Difference]: Finished difference Result 519 states and 600 transitions. [2020-09-25 04:02:22,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:02:22,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 04:02:22,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:02:22,790 INFO L225 Difference]: With dead ends: 519 [2020-09-25 04:02:22,790 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 04:02:22,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:02:22,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 04:02:22,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 284. [2020-09-25 04:02:22,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 04:02:22,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 309 transitions. [2020-09-25 04:02:22,842 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 309 transitions. Word has length 156 [2020-09-25 04:02:22,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:02:22,843 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 309 transitions. [2020-09-25 04:02:22,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:02:22,843 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 309 transitions. [2020-09-25 04:02:22,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 04:02:22,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:02:22,846 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:02:22,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:02:22,846 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:02:22,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:02:22,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1643670934, now seen corresponding path program 1 times [2020-09-25 04:02:22,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:02:22,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196081441] [2020-09-25 04:02:22,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:02:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:22,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:23,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:23,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:23,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:26,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:27,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:27,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:27,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:27,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:27,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:27,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 04:02:27,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 04:02:27,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 04:02:27,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:27,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:27,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:02:27,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 04:02:27,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:02:27,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:02:28,227 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:02:28,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:02:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:02:28,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:28,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 04:02:28,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:28,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:28,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:28,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:28,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:02:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:28,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:28,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:02:28,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:28,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:28,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:02:28,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:02:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:28,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:28,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:02:28,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:28,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:28,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:28,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:28,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:02:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:28,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:28,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:02:28,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:28,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:28,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:02:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:28,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:28,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:02:28,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:28,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:28,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:28,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:02:28,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:02:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:02:28,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:28,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:02:28,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:28,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:28,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:02:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:02:28,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:02:28,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 04:02:28,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:02:28,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 04:02:28,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:02:28,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:28,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:02:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:02:28,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:28,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:02:28,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:02:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:02:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:02:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:28,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:02:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:02:28,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:28,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:02:28,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:02:28,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:02:28,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:02:28,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:28,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:02:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:28,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:28,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:28,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:02:28,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:28,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:02:28,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:28,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 04:02:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:28,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:28,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:28,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:28,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:02:28,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:28,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:28,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 04:02:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:28,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:28,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:28,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:28,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:28,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:28,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:28,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:28,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:28,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:02:28,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:28,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:28,614 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 04:02:28,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196081441] [2020-09-25 04:02:28,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:02:28,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:02:28,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175519969] [2020-09-25 04:02:28,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:02:28,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:02:28,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:02:28,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:02:28,617 INFO L87 Difference]: Start difference. First operand 284 states and 309 transitions. Second operand 7 states. [2020-09-25 04:02:29,170 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:02:30,843 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:02:32,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:02:32,129 INFO L93 Difference]: Finished difference Result 713 states and 845 transitions. [2020-09-25 04:02:32,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 04:02:32,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-09-25 04:02:32,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:02:32,136 INFO L225 Difference]: With dead ends: 713 [2020-09-25 04:02:32,136 INFO L226 Difference]: Without dead ends: 539 [2020-09-25 04:02:32,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:02:32,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-09-25 04:02:32,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 412. [2020-09-25 04:02:32,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-25 04:02:32,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 444 transitions. [2020-09-25 04:02:32,201 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 444 transitions. Word has length 174 [2020-09-25 04:02:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:02:32,202 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 444 transitions. [2020-09-25 04:02:32,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:02:32,202 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 444 transitions. [2020-09-25 04:02:32,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 04:02:32,205 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:02:32,205 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:32,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:02:32,206 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:02:32,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:02:32,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1767633038, now seen corresponding path program 1 times [2020-09-25 04:02:32,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:02:32,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168360433] [2020-09-25 04:02:32,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:02:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:32,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:33,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:33,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:33,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:33,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:33,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:37,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:37,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 04:02:37,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:02:37,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 04:02:37,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:37,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:37,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:02:37,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 04:02:37,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:02:37,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:37,616 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:02:37,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:02:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:37,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:37,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:37,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:02:37,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:37,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 04:02:37,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:37,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:37,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:02:37,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:02:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:37,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:37,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:37,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:37,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:02:37,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:37,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:37,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:37,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:02:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:37,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:37,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:37,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:37,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:37,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:02:37,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:37,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:37,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:37,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:37,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:37,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:37,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:02:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:37,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:37,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:37,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:37,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:37,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:37,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:37,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:37,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:37,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:37,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:37,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:37,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:02:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:37,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:37,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:37,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:37,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:37,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:02:37,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:37,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:37,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:37,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:37,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:37,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:02:37,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:02:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:37,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:37,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:37,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:02:37,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:37,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:02:37,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:37,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:37,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:37,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:37,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:02:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:37,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:37,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:37,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:38,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:38,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 04:02:38,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:02:38,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 04:02:38,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:38,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:38,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:02:38,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:38,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 04:02:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:38,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:02:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:38,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:38,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:38,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:38,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 04:02:38,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:02:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 04:02:38,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:38,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:02:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:02:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:02:38,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:02:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:38,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:38,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:38,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:02:38,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:38,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:02:38,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:38,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:02:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:02:38,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:38,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:02:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:38,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:38,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:38,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:02:38,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:38,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:02:38,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:38,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:02:38,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:38,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:02:38,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:38,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:02:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:38,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:38,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:38,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:02:38,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:38,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:02:38,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:38,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:38,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:38,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:38,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:38,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:38,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:02:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:38,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:38,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:38,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:38,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:38,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:38,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:38,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:38,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:02:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:02:38,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:38,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 04:02:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:38,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:38,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:38,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:38,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:38,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:02:38,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:38,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:38,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:02:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:02:38,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:38,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 04:02:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:38,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:38,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:38,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:38,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:38,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:02:38,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:38,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:38,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:02:38,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:38,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:02:38,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:38,265 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 04:02:38,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168360433] [2020-09-25 04:02:38,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:02:38,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:02:38,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142567324] [2020-09-25 04:02:38,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:02:38,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:02:38,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:02:38,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:02:38,268 INFO L87 Difference]: Start difference. First operand 412 states and 444 transitions. Second operand 10 states. [2020-09-25 04:02:38,786 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:02:40,602 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:02:40,962 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:02:41,337 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:02:42,887 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 04:02:43,561 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 04:02:43,876 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:02:44,240 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 191