/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:20:39,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:20:39,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:20:40,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:20:40,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:20:40,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:20:40,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:20:40,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:20:40,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:20:40,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:20:40,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:20:40,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:20:40,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:20:40,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:20:40,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:20:40,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:20:40,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:20:40,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:20:40,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:20:40,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:20:40,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:20:40,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:20:40,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:20:40,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:20:40,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:20:40,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:20:40,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:20:40,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:20:40,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:20:40,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:20:40,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:20:40,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:20:40,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:20:40,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:20:40,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:20:40,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:20:40,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:20:40,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:20:40,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:20:40,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:20:40,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:20:40,110 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:20:40,155 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:20:40,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:20:40,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:20:40,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:20:40,158 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:20:40,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:20:40,158 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:20:40,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:20:40,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:20:40,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:20:40,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:20:40,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:20:40,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:20:40,161 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:20:40,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:20:40,161 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:20:40,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:20:40,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:20:40,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:20:40,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:20:40,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:20:40,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:20:40,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:20:40,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:20:40,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:20:40,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:20:40,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:20:40,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:20:40,164 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:20:40,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:20:40,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:20:40,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:20:40,642 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:20:40,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:20:40,644 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:20:40,645 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product32.cil.c [2020-09-25 06:20:40,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04e5871e2/af29284e46f44931921146bfd63689ae/FLAG12c216f08 [2020-09-25 06:20:41,285 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:20:41,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product32.cil.c [2020-09-25 06:20:41,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04e5871e2/af29284e46f44931921146bfd63689ae/FLAG12c216f08 [2020-09-25 06:20:41,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04e5871e2/af29284e46f44931921146bfd63689ae [2020-09-25 06:20:41,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:20:41,569 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:20:41,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:20:41,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:20:41,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:20:41,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:20:41" (1/1) ... [2020-09-25 06:20:41,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:41, skipping insertion in model container [2020-09-25 06:20:41,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:20:41" (1/1) ... [2020-09-25 06:20:41,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:20:41,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:20:42,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:20:42,225 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:20:42,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:20:42,367 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:20:42,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42 WrapperNode [2020-09-25 06:20:42,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:20:42,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:20:42,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:20:42,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:20:42,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... [2020-09-25 06:20:42,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:20:42,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:20:42,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:20:42,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:20:42,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:20:42,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:20:42,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:20:42,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:20:42,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:20:42,549 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:20:42,550 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:20:42,550 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:20:42,550 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:20:42,550 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:20:42,550 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:20:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:20:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:20:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:20:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:20:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:20:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:20:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:20:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:20:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:20:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:20:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:20:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:20:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:20:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:20:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:20:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:20:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:20:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:20:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:20:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:20:42,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:20:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:20:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:20:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:20:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:20:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:20:42,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:20:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:20:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:20:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:20:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:20:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:20:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:20:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:20:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:20:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:20:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:20:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:20:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:20:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:20:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:20:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:20:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:20:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:20:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:20:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:20:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:20:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:20:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:20:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:20:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:20:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:20:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:20:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:20:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:20:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:20:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:20:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:20:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:20:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:20:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:20:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:20:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:20:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:20:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:20:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:20:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:20:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:20:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:20:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:20:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:20:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:20:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:20:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:20:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:20:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:20:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:20:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:20:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:20:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:20:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:20:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:20:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:20:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:20:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:20:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:20:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:20:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:20:43,694 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:20:43,694 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:20:43,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:20:43 BoogieIcfgContainer [2020-09-25 06:20:43,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:20:43,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:20:43,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:20:43,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:20:43,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:20:41" (1/3) ... [2020-09-25 06:20:43,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296e3b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:20:43, skipping insertion in model container [2020-09-25 06:20:43,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:20:42" (2/3) ... [2020-09-25 06:20:43,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296e3b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:20:43, skipping insertion in model container [2020-09-25 06:20:43,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:20:43" (3/3) ... [2020-09-25 06:20:43,712 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product32.cil.c [2020-09-25 06:20:43,724 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:20:43,735 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:20:43,759 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:20:43,796 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:20:43,797 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:20:43,797 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:20:43,797 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:20:43,797 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:20:43,797 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:20:43,798 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:20:43,798 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:20:43,830 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2020-09-25 06:20:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:20:43,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:43,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:20:43,851 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:43,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:43,860 INFO L82 PathProgramCache]: Analyzing trace with hash -2025840680, now seen corresponding path program 1 times [2020-09-25 06:20:43,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:43,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79620573] [2020-09-25 06:20:43,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:44,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:46,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:47,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:49,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:49,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:49,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:20:49,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:20:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 06:20:49,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:49,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:20:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:49,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:20:49,728 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:49,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:49,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:49,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:49,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:49,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:49,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 06:20:49,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:49,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:49,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:49,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:49,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:49,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:49,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:49,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:49,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:49,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:49,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:49,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:49,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:49,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:49,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:49,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:49,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:49,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:49,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:49,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:49,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:49,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:49,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:49,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:49,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:49,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:49,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:49,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:49,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:49,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:49,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:50,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 06:20:50,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:50,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:50,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:50,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:50,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:20:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:50,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:50,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:50,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:20:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:50,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:50,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:50,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:50,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:50,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:50,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:50,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:50,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:50,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:50,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:50,113 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 06:20:50,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79620573] [2020-09-25 06:20:50,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:50,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:20:50,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069209217] [2020-09-25 06:20:50,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:20:50,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:50,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:20:50,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:20:50,151 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 4 states. [2020-09-25 06:20:51,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:51,738 INFO L93 Difference]: Finished difference Result 493 states and 590 transitions. [2020-09-25 06:20:51,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:20:51,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:20:51,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:51,761 INFO L225 Difference]: With dead ends: 493 [2020-09-25 06:20:51,761 INFO L226 Difference]: Without dead ends: 315 [2020-09-25 06:20:51,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:20:51,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-25 06:20:51,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 263. [2020-09-25 06:20:51,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-25 06:20:51,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 288 transitions. [2020-09-25 06:20:51,889 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 288 transitions. Word has length 148 [2020-09-25 06:20:51,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:51,890 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 288 transitions. [2020-09-25 06:20:51,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:20:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 288 transitions. [2020-09-25 06:20:51,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:20:51,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:51,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:20:51,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:20:51,896 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:51,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:51,897 INFO L82 PathProgramCache]: Analyzing trace with hash -435050295, now seen corresponding path program 1 times [2020-09-25 06:20:51,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:51,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479409611] [2020-09-25 06:20:51,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:52,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:52,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:53,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:54,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:55,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:56,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:56,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:56,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:20:56,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:20:56,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 06:20:56,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:56,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:56,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:56,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:20:56,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:20:56,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,340 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:57,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:57,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 06:20:57,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:57,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:57,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:57,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:57,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:57,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:20:57,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:57,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:57,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:57,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:57,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:20:57,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:20:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:57,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:57,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:57,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:20:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:57,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:57,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:57,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:57,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:57,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:57,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:57,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:57,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:57,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:57,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:57,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:57,593 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 06:20:57,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479409611] [2020-09-25 06:20:57,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:57,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:20:57,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252192473] [2020-09-25 06:20:57,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:20:57,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:57,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:20:57,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:20:57,599 INFO L87 Difference]: Start difference. First operand 263 states and 288 transitions. Second operand 5 states. [2020-09-25 06:20:58,320 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:20:59,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:59,524 INFO L93 Difference]: Finished difference Result 412 states and 473 transitions. [2020-09-25 06:20:59,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:20:59,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:20:59,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:59,530 INFO L225 Difference]: With dead ends: 412 [2020-09-25 06:20:59,530 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 06:20:59,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:20:59,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 06:20:59,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 253. [2020-09-25 06:20:59,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 06:20:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 275 transitions. [2020-09-25 06:20:59,653 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 275 transitions. Word has length 149 [2020-09-25 06:20:59,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:59,656 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 275 transitions. [2020-09-25 06:20:59,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:20:59,657 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 275 transitions. [2020-09-25 06:20:59,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:20:59,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:59,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:20:59,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:20:59,663 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:59,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:59,663 INFO L82 PathProgramCache]: Analyzing trace with hash -917624863, now seen corresponding path program 1 times [2020-09-25 06:20:59,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:59,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600455199] [2020-09-25 06:20:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:59,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:00,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:00,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:01,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:02,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:04,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:04,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 06:21:04,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:04,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 06:21:04,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:04,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:21:04,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:21:04,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:05,119 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:05,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:05,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 06:21:05,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:05,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:05,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:05,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:05,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:05,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:05,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:05,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:05,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:05,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:05,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:05,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:05,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:05,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:05,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:05,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:05,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:05,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:05,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:05,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:05,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:05,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:21:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:05,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:05,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:05,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:05,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:05,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:21:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:05,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:05,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:05,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:21:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:05,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:05,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:05,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:05,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:05,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:05,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:05,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:05,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:05,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:05,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:05,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:05,375 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 06:21:05,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600455199] [2020-09-25 06:21:05,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:05,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:21:05,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342736923] [2020-09-25 06:21:05,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:21:05,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:05,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:21:05,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:21:05,381 INFO L87 Difference]: Start difference. First operand 253 states and 275 transitions. Second operand 6 states. [2020-09-25 06:21:05,916 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:08,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:08,195 INFO L93 Difference]: Finished difference Result 613 states and 725 transitions. [2020-09-25 06:21:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:21:08,196 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 06:21:08,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:08,202 INFO L225 Difference]: With dead ends: 613 [2020-09-25 06:21:08,202 INFO L226 Difference]: Without dead ends: 475 [2020-09-25 06:21:08,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:21:08,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-09-25 06:21:08,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 381. [2020-09-25 06:21:08,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-25 06:21:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 426 transitions. [2020-09-25 06:21:08,283 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 426 transitions. Word has length 162 [2020-09-25 06:21:08,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:08,284 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 426 transitions. [2020-09-25 06:21:08,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:21:08,284 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 426 transitions. [2020-09-25 06:21:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 06:21:08,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:08,287 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] [2020-09-25 06:21:08,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:21:08,287 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:08,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:08,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1871649820, now seen corresponding path program 1 times [2020-09-25 06:21:08,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:08,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902952320] [2020-09-25 06:21:08,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:08,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:09,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:09,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:10,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:12,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:13,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:13,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:21:13,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:13,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:21:13,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:13,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:13,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:21:13,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:21:13,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:21:13,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:13,726 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:13,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:13,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:13,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:13,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:13,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:13,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 06:21:13,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:13,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:13,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:13,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:13,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:13,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:13,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:13,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:13,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:13,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:13,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:13,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:13,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:13,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:13,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:13,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:13,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:13,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:13,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:13,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:13,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:13,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:13,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:13,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:13,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:13,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:13,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:13,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:13,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:13,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:13,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:13,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:13,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:13,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:13,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:13,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:21:13,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:13,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:13,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:13,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:13,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:13,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:13,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:13,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:13,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:13,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:13,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:13,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:13,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:13,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:13,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:13,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:13,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:13,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:13,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:13,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:13,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:13,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:13,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:13,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:13,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:13,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:13,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:13,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:21:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:13,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:13,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:13,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:21:13,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:13,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:13,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:13,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:13,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:21:13,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:13,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:21:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:13,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:13,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:13,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:13,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:13,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:21:13,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:13,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:21:13,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:13,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 06:21:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:13,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:14,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:14,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:14,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:14,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:14,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:14,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:14,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:14,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:21:14,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:14,068 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 06:21:14,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902952320] [2020-09-25 06:21:14,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:21:14,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:21:14,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854229976] [2020-09-25 06:21:14,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:21:14,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:14,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:21:14,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:21:14,075 INFO L87 Difference]: Start difference. First operand 381 states and 426 transitions. Second operand 6 states. [2020-09-25 06:21:14,772 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:17,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:17,552 INFO L93 Difference]: Finished difference Result 856 states and 1064 transitions. [2020-09-25 06:21:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:21:17,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 06:21:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:17,561 INFO L225 Difference]: With dead ends: 856 [2020-09-25 06:21:17,561 INFO L226 Difference]: Without dead ends: 853 [2020-09-25 06:21:17,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:21:17,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-09-25 06:21:17,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 650. [2020-09-25 06:21:17,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-09-25 06:21:17,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 743 transitions. [2020-09-25 06:21:17,700 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 743 transitions. Word has length 167 [2020-09-25 06:21:17,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:17,700 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 743 transitions. [2020-09-25 06:21:17,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:21:17,701 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 743 transitions. [2020-09-25 06:21:17,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 06:21:17,705 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:21:17,705 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:21:17,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:21:17,706 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:21:17,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:21:17,706 INFO L82 PathProgramCache]: Analyzing trace with hash 645088222, now seen corresponding path program 1 times [2020-09-25 06:21:17,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:21:17,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198482942] [2020-09-25 06:21:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:21:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:17,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:17,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:18,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:18,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:21,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:22,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:22,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 06:21:22,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:21:22,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 06:21:22,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:22,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:22,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:21:22,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 06:21:22,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:21:22,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,059 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:21:23,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:21:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:21:23,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 06:21:23,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:21:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:23,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:23,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:21:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:23,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:21:23,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:21:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:23,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:21:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:21:23,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:23,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:21:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:21:23,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:21:23,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:21:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:21:23,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:21:23,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:21:23,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:21:23,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:21:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:21:23,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:21:23,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 06:21:23,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:21:23,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:21:23,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 06:21:23,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:21:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 06:21:23,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 06:21:23,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:21:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 06:21:23,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:21:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:23,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:21:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:21:23,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:21:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:21:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:21:23,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:21:23,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 06:21:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:21:23,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:23,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:21:23,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 06:21:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:21:23,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:21:23,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:21:23,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:21:23,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:21:23,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:21:23,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:21:23,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:21:23,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:21:23,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:21:23,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:21:23,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:21:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 06:21:23,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198482942] [2020-09-25 06:21:23,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:21:23,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 06:21:23,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858620158] [2020-09-25 06:21:23,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 06:21:23,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:21:23,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 06:21:23,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:21:23,729 INFO L87 Difference]: Start difference. First operand 650 states and 743 transitions. Second operand 14 states. [2020-09-25 06:21:24,264 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:21:25,778 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:21:26,121 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:21:26,767 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 06:21:27,393 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 199 [2020-09-25 06:21:27,974 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-09-25 06:21:28,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:21:28,415 INFO L93 Difference]: Finished difference Result 894 states and 1081 transitions. [2020-09-25 06:21:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 06:21:28,416 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 217 [2020-09-25 06:21:28,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:21:28,417 INFO L225 Difference]: With dead ends: 894 [2020-09-25 06:21:28,417 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:21:28,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2020-09-25 06:21:28,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:21:28,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:21:28,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:21:28,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:21:28,421 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2020-09-25 06:21:28,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:21:28,422 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:21:28,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 06:21:28,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:21:28,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:21:28,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:21:28,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:21:28,640 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190