/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:03:05,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:03:05,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:03:05,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:03:05,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:03:05,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:03:05,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:03:05,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:03:05,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:03:05,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:03:05,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:03:05,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:03:05,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:03:05,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:03:05,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:03:05,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:03:05,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:03:05,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:03:05,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:03:05,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:03:05,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:03:05,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:03:05,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:03:05,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:03:05,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:03:05,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:03:05,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:03:05,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:03:05,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:03:05,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:03:05,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:03:05,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:03:05,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:03:05,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:03:05,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:03:05,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:03:05,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:03:05,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:03:05,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:03:05,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:03:05,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:03:05,588 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:03:05,623 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:03:05,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:03:05,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:03:05,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:03:05,628 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:03:05,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:03:05,628 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:03:05,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:03:05,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:03:05,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:03:05,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:03:05,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:03:05,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:03:05,629 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:03:05,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:03:05,631 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:03:05,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:03:05,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:03:05,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:03:05,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:03:05,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:03:05,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:03:05,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:03:05,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:03:05,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:03:05,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:03:05,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:03:05,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:03:05,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:03:05,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:03:06,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:03:06,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:03:06,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:03:06,170 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:03:06,170 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:03:06,171 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product22.cil.c [2020-09-25 04:03:06,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/057411014/b5970050a36e40b982384560e3cfdddc/FLAG6c9ac761a [2020-09-25 04:03:06,826 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:03:06,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product22.cil.c [2020-09-25 04:03:06,843 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/057411014/b5970050a36e40b982384560e3cfdddc/FLAG6c9ac761a [2020-09-25 04:03:07,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/057411014/b5970050a36e40b982384560e3cfdddc [2020-09-25 04:03:07,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:03:07,111 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:03:07,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:03:07,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:03:07,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:03:07,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:03:07" (1/1) ... [2020-09-25 04:03:07,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:07, skipping insertion in model container [2020-09-25 04:03:07,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:03:07" (1/1) ... [2020-09-25 04:03:07,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:03:07,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:03:07,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:03:07,730 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:03:07,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:03:07,951 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:03:07,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:07 WrapperNode [2020-09-25 04:03:07,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:03:07,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:03:07,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:03:07,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:03:07,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:07" (1/1) ... [2020-09-25 04:03:07,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:07" (1/1) ... [2020-09-25 04:03:07,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:07" (1/1) ... [2020-09-25 04:03:07,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:07" (1/1) ... [2020-09-25 04:03:08,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:07" (1/1) ... [2020-09-25 04:03:08,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:07" (1/1) ... [2020-09-25 04:03:08,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:07" (1/1) ... [2020-09-25 04:03:08,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:03:08,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:03:08,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:03:08,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:03:08,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:03:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:03:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:03:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:03:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:03:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:03:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:03:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:03:08,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:03:08,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:03:08,155 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:03:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:03:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:03:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:03:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:03:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:03:08,157 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:03:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 04:03:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:03:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:03:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:03:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:03:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:03:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:03:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 04:03:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:03:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:03:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:03:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 04:03:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 04:03:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:03:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:03:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:03:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:03:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:03:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:03:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 04:03:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:03:08,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:03:08,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:03:08,163 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:03:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:03:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:03:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:03:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:03:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:03:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:03:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:03:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:03:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:03:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:03:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:03:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:03:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:03:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:03:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:03:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:03:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:03:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:03:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:03:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:03:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:03:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:03:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:03:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:03:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:03:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:03:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:03:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 04:03:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:03:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:03:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:03:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:03:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:03:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:03:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:03:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:03:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:03:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 04:03:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:03:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:03:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:03:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:03:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 04:03:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:03:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:03:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 04:03:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 04:03:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:03:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:03:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:03:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:03:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:03:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:03:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:03:09,484 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:03:09,484 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:03:09,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:03:09 BoogieIcfgContainer [2020-09-25 04:03:09,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:03:09,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:03:09,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:03:09,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:03:09,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:03:07" (1/3) ... [2020-09-25 04:03:09,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7431f8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:03:09, skipping insertion in model container [2020-09-25 04:03:09,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:03:07" (2/3) ... [2020-09-25 04:03:09,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7431f8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:03:09, skipping insertion in model container [2020-09-25 04:03:09,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:03:09" (3/3) ... [2020-09-25 04:03:09,508 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product22.cil.c [2020-09-25 04:03:09,520 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:03:09,534 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:03:09,559 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:03:09,601 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:03:09,601 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:03:09,601 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:03:09,601 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:03:09,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:03:09,601 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:03:09,602 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:03:09,602 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:03:09,643 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 04:03:09,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 04:03:09,680 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:03:09,682 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 04:03:09,682 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:03:09,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:03:09,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1254916624, now seen corresponding path program 1 times [2020-09-25 04:03:09,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:03:09,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824394000] [2020-09-25 04:03:09,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:03:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:10,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:10,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:12,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:13,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:13,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:14,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:15,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:15,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 04:03:15,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:03:15,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 04:03:15,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:15,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:15,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 04:03:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:15,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:03:15,733 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:03:15,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:03:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:15,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:15,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:15,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:03:15,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:15,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 04:03:15,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:15,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:15,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:03:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:15,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:15,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:15,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:15,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:15,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:03:15,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:15,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:15,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:15,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:15,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:03:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:15,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:15,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:15,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:15,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:15,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:03:15,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:15,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:15,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:15,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:15,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:15,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:15,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:03:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:15,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:15,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:15,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:15,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:15,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:03:15,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:15,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:15,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:15,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:15,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:15,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:15,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:03:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:15,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:15,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:15,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:15,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:15,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:03:15,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:15,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:15,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:15,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:03:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:15,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:15,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:15,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:03:15,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:16,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:03:16,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:16,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:16,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:16,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:16,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:16,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 04:03:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:16,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:16,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:16,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:16,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:16,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:03:16,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:16,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:16,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:16,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:03:16,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:16,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:16,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 04:03:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:16,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:16,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:16,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:16,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:16,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:03:16,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:16,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:03:16,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:16,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:03:16,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824394000] [2020-09-25 04:03:16,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:03:16,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:03:16,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991402437] [2020-09-25 04:03:16,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:03:16,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:03:16,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:03:16,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:03:16,105 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 4 states. [2020-09-25 04:03:17,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:03:17,740 INFO L93 Difference]: Finished difference Result 478 states and 569 transitions. [2020-09-25 04:03:17,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:03:17,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 04:03:17,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:03:17,763 INFO L225 Difference]: With dead ends: 478 [2020-09-25 04:03:17,763 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 04:03:17,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:03:17,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 04:03:17,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 257. [2020-09-25 04:03:17,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-25 04:03:17,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 280 transitions. [2020-09-25 04:03:17,880 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 280 transitions. Word has length 148 [2020-09-25 04:03:17,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:03:17,884 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 280 transitions. [2020-09-25 04:03:17,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:03:17,884 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 280 transitions. [2020-09-25 04:03:17,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 04:03:17,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:03:17,891 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 04:03:17,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:03:17,892 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:03:17,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:03:17,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1685904338, now seen corresponding path program 1 times [2020-09-25 04:03:17,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:03:17,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299557950] [2020-09-25 04:03:17,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:03:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:18,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:18,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:19,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:20,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:21,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:22,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:22,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 04:03:22,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:03:22,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 04:03:22,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:22,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:22,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:03:22,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 04:03:22,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:03:22,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:23,261 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:03:23,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:03:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:23,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:23,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:23,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:03:23,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:23,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 04:03:23,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:23,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:23,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:23,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:23,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:03:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:23,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:23,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:23,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:23,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:23,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:03:23,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:23,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:23,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:23,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:03:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:23,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:23,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:23,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:23,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:23,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:03:23,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:23,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:23,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:23,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:23,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:03:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:23,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:23,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:23,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:23,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:23,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:03:23,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:23,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:23,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:23,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:23,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:03:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:23,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:23,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:23,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:23,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:23,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:03:23,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:23,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:23,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:23,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:23,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:23,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:23,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:03:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:23,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:23,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:23,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:03:23,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:03:23,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:23,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:23,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:23,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 04:03:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:23,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:23,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:23,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:23,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:23,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:03:23,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:23,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:23,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:23,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:03:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:23,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:23,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 04:03:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:23,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:23,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:23,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:23,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:23,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:03:23,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:23,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:23,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:23,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:03:23,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:23,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:03:23,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299557950] [2020-09-25 04:03:23,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:03:23,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:03:23,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253514678] [2020-09-25 04:03:23,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:03:23,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:03:23,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:03:23,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:03:23,520 INFO L87 Difference]: Start difference. First operand 257 states and 280 transitions. Second operand 5 states. [2020-09-25 04:03:24,191 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:03:25,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:03:25,117 INFO L93 Difference]: Finished difference Result 403 states and 460 transitions. [2020-09-25 04:03:25,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:03:25,118 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 04:03:25,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:03:25,123 INFO L225 Difference]: With dead ends: 403 [2020-09-25 04:03:25,127 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 04:03:25,130 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 04:03:25,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 04:03:25,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 247. [2020-09-25 04:03:25,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-25 04:03:25,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 267 transitions. [2020-09-25 04:03:25,178 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 267 transitions. Word has length 149 [2020-09-25 04:03:25,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:03:25,179 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 267 transitions. [2020-09-25 04:03:25,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:03:25,179 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 267 transitions. [2020-09-25 04:03:25,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 04:03:25,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:03:25,182 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 04:03:25,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:03:25,182 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:03:25,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:03:25,183 INFO L82 PathProgramCache]: Analyzing trace with hash 285383563, now seen corresponding path program 1 times [2020-09-25 04:03:25,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:03:25,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849810661] [2020-09-25 04:03:25,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:03:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:25,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:25,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:26,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:26,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:27,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:30,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:30,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 04:03:30,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:03:30,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 04:03:30,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:30,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:30,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:03:30,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 04:03:30,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:03:30,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:30,607 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:03:30,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:03:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:30,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:30,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:30,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:03:30,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:30,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 04:03:30,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:30,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:30,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:30,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:30,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:03:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:30,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:30,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:30,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:30,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:30,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:03:30,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:30,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:30,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:30,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:30,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:30,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:03:30,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:03:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:30,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:30,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:30,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:30,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:30,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:03:30,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:30,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:30,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:30,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:30,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:30,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:03:30,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:03:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:30,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:30,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:30,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:30,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:03:30,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:30,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:30,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:03:30,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:03:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:30,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:30,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:30,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:30,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:30,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:03:30,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:30,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:30,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:03:30,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:03:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:30,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:30,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:30,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:03:30,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:30,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:03:30,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:30,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:30,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:30,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:30,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:30,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:30,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:03:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:30,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:30,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:30,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:03:30,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:03:30,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:30,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:03:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:30,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:03:30,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:30,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 04:03:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:30,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:30,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:30,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:30,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:30,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:03:30,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:30,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:03:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:30,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:30,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:03:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:30,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:30,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:30,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:30,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:30,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:03:30,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:30,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:03:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:30,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:03:30,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849810661] [2020-09-25 04:03:30,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:03:30,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:03:30,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961122061] [2020-09-25 04:03:30,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:03:30,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:03:30,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:03:30,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:03:30,997 INFO L87 Difference]: Start difference. First operand 247 states and 267 transitions. Second operand 6 states. [2020-09-25 04:03:31,577 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:03:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:03:32,702 INFO L93 Difference]: Finished difference Result 450 states and 525 transitions. [2020-09-25 04:03:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:03:32,704 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 04:03:32,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:03:32,706 INFO L225 Difference]: With dead ends: 450 [2020-09-25 04:03:32,707 INFO L226 Difference]: Without dead ends: 318 [2020-09-25 04:03:32,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 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 04:03:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-25 04:03:32,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 247. [2020-09-25 04:03:32,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-25 04:03:32,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 266 transitions. [2020-09-25 04:03:32,755 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 266 transitions. Word has length 162 [2020-09-25 04:03:32,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:03:32,756 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 266 transitions. [2020-09-25 04:03:32,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:03:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 266 transitions. [2020-09-25 04:03:32,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 04:03:32,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:03:32,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:03:32,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:03:32,759 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:03:32,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:03:32,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1942509693, now seen corresponding path program 1 times [2020-09-25 04:03:32,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:03:32,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483062518] [2020-09-25 04:03:32,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:03:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:32,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:33,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:33,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:34,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:35,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:37,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:37,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 04:03:37,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:03:37,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 04:03:37,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:37,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:03:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 04:03:37,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 04:03:37,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:03:38,124 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:03:38,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:03:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 04:03:38,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:38,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 04:03:38,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:38,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:38,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 04:03:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:38,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:38,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:03:38,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:38,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:38,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:38,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:03:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:38,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:03:38,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:38,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 04:03:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:38,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:38,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:03:38,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:38,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:38,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 04:03:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:38,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:03:38,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:38,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:38,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 04:03:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:03:38,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:38,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:03:38,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:38,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:38,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:03:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:03:38,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:38,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:03:38,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:03:38,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:03:38,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:38,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 04:03:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:03:38,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:03:38,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:03:38,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:03:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:03:38,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:03:38,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:03:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:03:38,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:38,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:03:38,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:03:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:03:38,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:38,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:03:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:03:38,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:38,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:03:38,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:03:38,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:03:38,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:38,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 04:03:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:38,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:38,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:03:38,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:03:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:03:38,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:38,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 04:03:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:03:38,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:03:38,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:03:38,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:03:38,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:03:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:03:38,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:03:38,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:03:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:03:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:03:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:03:38,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:03:38,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:03:38,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483062518] [2020-09-25 04:03:38,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:03:38,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 04:03:38,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015064715] [2020-09-25 04:03:38,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:03:38,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:03:38,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:03:38,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:03:38,465 INFO L87 Difference]: Start difference. First operand 247 states and 266 transitions. Second operand 11 states. [2020-09-25 04:03:39,104 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:03:40,367 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:40,691 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:03:41,088 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:41,445 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:03:41,782 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:42,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:03:42,099 INFO L93 Difference]: Finished difference Result 389 states and 452 transitions. [2020-09-25 04:03:42,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 04:03:42,100 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 175 [2020-09-25 04:03:42,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:03:42,102 INFO L225 Difference]: With dead ends: 389 [2020-09-25 04:03:42,102 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 04:03:42,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2020-09-25 04:03:42,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 04:03:42,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 04:03:42,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 04:03:42,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 04:03:42,104 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 175 [2020-09-25 04:03:42,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:03:42,104 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 04:03:42,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:03:42,105 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 04:03:42,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 04:03:42,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:03:42,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 04:03:42,314 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:42,517 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 17 [2020-09-25 04:03:42,685 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:42,862 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:43,025 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:43,183 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:43,550 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-25 04:03:43,904 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-25 04:03:44,251 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-25 04:03:44,599 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-25 04:03:44,951 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-25 04:03:45,107 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:45,261 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:45,419 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:45,572 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:45,716 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:03:45,868 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:46,026 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 17 [2020-09-25 04:03:46,183 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:46,336 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:46,492 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:46,647 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:46,802 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:46,954 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:47,107 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:47,262 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:47,414 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:47,573 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:47,727 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:47,880 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:48,033 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:48,186 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:48,339 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:48,491 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:48,651 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:48,806 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:48,970 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:49,137 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:49,298 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:49,453 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:49,605 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 12 [2020-09-25 04:03:49,948 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-25 04:03:50,294 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-25 04:03:50,640 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-25 04:03:50,987 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-25 04:03:51,331 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-25 04:03:51,483 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:51,645 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:51,814 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:51,968 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:52,127 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:52,312 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 12 [2020-09-25 04:03:52,465 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:52,618 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:03:52,772 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 12 [2020-09-25 04:03:52,974 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 11 [2020-09-25 04:03:53,234 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 04:03:53,440 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 11 [2020-09-25 04:03:53,684 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 18 [2020-09-25 04:03:53,894 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 11 [2020-09-25 04:03:54,165 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:03:54,388 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 04:03:54,634 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 04:03:54,845 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 18 [2020-09-25 04:03:55,052 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 12 [2020-09-25 04:03:55,226 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 12 [2020-09-25 04:03:55,440 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 04:03:55,661 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 04:03:55,868 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 11 [2020-09-25 04:03:56,080 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 12 [2020-09-25 04:03:56,303 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 04:03:56,506 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 11 [2020-09-25 04:03:56,742 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 18 [2020-09-25 04:03:56,978 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 12 [2020-09-25 04:03:57,205 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 12