/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:09:35,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:09:35,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:09:35,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:09:35,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:09:35,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:09:35,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:09:35,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:09:35,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:09:35,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:09:35,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:09:35,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:09:35,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:09:35,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:09:35,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:09:35,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:09:35,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:09:35,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:09:35,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:09:35,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:09:35,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:09:35,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:09:35,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:09:35,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:09:35,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:09:35,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:09:35,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:09:35,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:09:35,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:09:35,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:09:35,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:09:35,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:09:35,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:09:35,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:09:35,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:09:35,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:09:35,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:09:35,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:09:35,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:09:35,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:09:35,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:09:35,599 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 05:09:35,625 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:09:35,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:09:35,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:09:35,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:09:35,628 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:09:35,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:09:35,628 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:09:35,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:09:35,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:09:35,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:09:35,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:09:35,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:09:35,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:09:35,629 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:09:35,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:09:35,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:09:35,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:09:35,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:09:35,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:09:35,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:09:35,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:09:35,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:09:35,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:09:35,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:09:35,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:09:35,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:09:35,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:09:35,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:09:35,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:09:35,636 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=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:09:36,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:09:36,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:09:36,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:09:36,139 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:09:36,140 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:09:36,141 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-09-25 05:09:36,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/054ef7481/fe14816bdcad460fb13c03113439bb83/FLAG6bdb50171 [2020-09-25 05:09:36,871 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:09:36,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-09-25 05:09:36,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/054ef7481/fe14816bdcad460fb13c03113439bb83/FLAG6bdb50171 [2020-09-25 05:09:37,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/054ef7481/fe14816bdcad460fb13c03113439bb83 [2020-09-25 05:09:37,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:09:37,164 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:09:37,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:09:37,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:09:37,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:09:37,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:09:37" (1/1) ... [2020-09-25 05:09:37,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:37, skipping insertion in model container [2020-09-25 05:09:37,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:09:37" (1/1) ... [2020-09-25 05:09:37,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:09:37,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:09:37,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:09:37,658 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:09:37,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:09:37,919 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:09:37,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:37 WrapperNode [2020-09-25 05:09:37,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:09:37,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:09:37,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:09:37,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:09:37,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:37" (1/1) ... [2020-09-25 05:09:37,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:37" (1/1) ... [2020-09-25 05:09:37,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:37" (1/1) ... [2020-09-25 05:09:37,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:37" (1/1) ... [2020-09-25 05:09:37,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:37" (1/1) ... [2020-09-25 05:09:38,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:37" (1/1) ... [2020-09-25 05:09:38,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:37" (1/1) ... [2020-09-25 05:09:38,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:09:38,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:09:38,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:09:38,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:09:38,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:37" (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 05:09:38,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:09:38,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:09:38,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:09:38,098 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:09:38,098 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:09:38,098 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:09:38,098 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:09:38,099 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:09:38,099 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:09:38,099 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:09:38,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:09:38,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:09:38,100 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:09:38,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:09:38,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 05:09:38,100 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:09:38,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:09:38,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:09:38,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:09:38,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:09:38,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:09:38,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:09:38,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:09:38,103 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:09:38,103 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:09:38,103 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:09:38,104 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:09:38,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 05:09:38,104 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:09:38,104 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:09:38,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:09:38,104 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:09:38,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:09:38,105 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:09:38,105 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:09:38,105 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:09:38,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:09:38,105 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:09:38,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:09:38,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:09:38,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 05:09:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:09:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:09:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:09:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:09:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:09:38,109 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:09:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:09:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:09:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:09:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:09:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:09:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:09:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:09:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 05:09:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:09:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:09:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:09:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:09:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 05:09:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:09:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:09:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:09:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:09:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 05:09:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:09:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:09:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:09:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:09:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:09:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:09:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:09:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:09:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:09:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:09:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:09:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:09:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:09:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:09:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:09:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:09:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:09:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:09:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:09:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:09:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:09:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:09:38,115 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:09:38,116 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:09:38,116 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:09:38,116 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:09:38,116 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:09:38,116 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:09:38,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:09:38,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:09:38,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:09:39,412 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:09:39,412 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:09:39,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:09:39 BoogieIcfgContainer [2020-09-25 05:09:39,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:09:39,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:09:39,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:09:39,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:09:39,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:09:37" (1/3) ... [2020-09-25 05:09:39,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2561e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:09:39, skipping insertion in model container [2020-09-25 05:09:39,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:09:37" (2/3) ... [2020-09-25 05:09:39,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2561e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:09:39, skipping insertion in model container [2020-09-25 05:09:39,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:09:39" (3/3) ... [2020-09-25 05:09:39,433 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2020-09-25 05:09:39,446 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:09:39,462 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:09:39,487 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:09:39,536 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:09:39,537 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:09:39,537 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:09:39,538 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:09:39,538 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:09:39,538 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:09:39,539 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:09:39,540 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:09:39,587 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2020-09-25 05:09:39,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 05:09:39,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:39,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:09:39,625 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:39,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:39,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1497316138, now seen corresponding path program 1 times [2020-09-25 05:09:39,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:39,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734283090] [2020-09-25 05:09:39,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:40,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:40,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:41,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:42,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:44,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:45,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:45,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 05:09:45,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:09:45,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 05:09:45,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:45,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:45,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:45,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:09:45,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:45,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 05:09:45,623 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:45,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:45,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:45,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:45,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:45,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:45,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 05:09:45,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:45,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:45,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:45,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:45,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:45,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:45,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:45,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:45,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:45,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:45,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:45,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:09:45,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:45,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:45,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:45,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:45,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:45,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:45,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:45,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:45,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:45,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:45,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:45,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:45,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:45,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:45,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:45,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:45,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:45,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:45,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:45,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:45,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:09:45,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:45,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:45,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:45,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:45,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:45,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:09:45,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:45,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:45,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:45,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:45,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:45,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:45,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:45,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:45,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:45,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 05:09:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:46,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:46,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:46,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:46,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:46,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:09:46,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:46,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:46,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:46,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:09:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:46,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:46,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:46,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:46,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:46,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 05:09:46,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:46,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:46,070 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 05:09:46,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734283090] [2020-09-25 05:09:46,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:46,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:09:46,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487805320] [2020-09-25 05:09:46,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:09:46,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:46,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:09:46,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:09:46,114 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 3 states. [2020-09-25 05:09:47,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:47,627 INFO L93 Difference]: Finished difference Result 503 states and 599 transitions. [2020-09-25 05:09:47,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:09:47,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 05:09:47,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:47,653 INFO L225 Difference]: With dead ends: 503 [2020-09-25 05:09:47,653 INFO L226 Difference]: Without dead ends: 310 [2020-09-25 05:09:47,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:09:47,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-25 05:09:47,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 267. [2020-09-25 05:09:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-25 05:09:47,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 291 transitions. [2020-09-25 05:09:47,842 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 291 transitions. Word has length 142 [2020-09-25 05:09:47,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:47,843 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 291 transitions. [2020-09-25 05:09:47,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:09:47,843 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 291 transitions. [2020-09-25 05:09:47,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 05:09:47,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:47,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:09:47,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:09:47,848 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:47,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:47,849 INFO L82 PathProgramCache]: Analyzing trace with hash -316918305, now seen corresponding path program 1 times [2020-09-25 05:09:47,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:47,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088755660] [2020-09-25 05:09:47,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:47,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:48,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:49,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:50,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:51,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:52,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:52,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 05:09:52,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:09:52,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 05:09:52,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:52,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:52,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:09:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:09:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:09:52,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:53,255 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:09:53,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:09:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:53,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:53,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:53,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:09:53,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:53,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 05:09:53,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:53,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:53,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:53,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:53,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:53,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:53,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:09:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:53,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:53,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:53,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:53,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:53,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:53,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:53,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:53,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:53,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:53,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:53,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:53,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:09:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:53,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:53,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:53,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:53,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:53,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:09:53,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:53,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:53,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:53,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:53,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:53,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:53,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:09:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:53,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:53,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:53,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:53,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:53,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:09:53,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:53,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:53,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:53,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:53,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:53,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:53,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:09:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:53,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:53,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:53,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:09:53,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:53,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:53,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:53,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:53,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:53,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:09:53,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:53,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:53,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:09:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:53,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:53,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:53,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:53,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:53,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:53,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:53,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:53,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:53,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:53,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:53,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:53,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:09:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:53,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:53,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:09:53,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:09:53,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:09:53,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:09:53,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:09:53,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:09:53,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:09:53,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:09:53,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:09:53,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:09:53,480 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 05:09:53,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088755660] [2020-09-25 05:09:53,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:09:53,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:09:53,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703151587] [2020-09-25 05:09:53,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:09:53,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:09:53,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:09:53,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:09:53,486 INFO L87 Difference]: Start difference. First operand 267 states and 291 transitions. Second operand 4 states. [2020-09-25 05:09:54,143 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:09:55,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:09:55,201 INFO L93 Difference]: Finished difference Result 414 states and 466 transitions. [2020-09-25 05:09:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:09:55,206 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 05:09:55,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:09:55,211 INFO L225 Difference]: With dead ends: 414 [2020-09-25 05:09:55,211 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 05:09:55,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:09:55,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 05:09:55,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-09-25 05:09:55,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-25 05:09:55,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions. [2020-09-25 05:09:55,261 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 143 [2020-09-25 05:09:55,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:09:55,262 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 278 transitions. [2020-09-25 05:09:55,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:09:55,262 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions. [2020-09-25 05:09:55,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 05:09:55,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:09:55,264 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] [2020-09-25 05:09:55,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:09:55,265 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:09:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:09:55,265 INFO L82 PathProgramCache]: Analyzing trace with hash -816638074, now seen corresponding path program 1 times [2020-09-25 05:09:55,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:09:55,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70413424] [2020-09-25 05:09:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:09:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:09:55,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:56,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:56,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:09:57,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:00,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:00,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:10:00,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:10:00,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 05:10:00,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:00,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:10:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 05:10:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 05:10:00,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:00,717 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:10:00,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:10:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:00,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:00,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:00,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:10:00,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:00,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 05:10:00,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:00,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 05:10:00,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:01,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:10:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:01,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:01,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:01,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:01,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:01,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:10:01,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:01,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:01,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:01,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:10:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:01,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:10:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:01,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:01,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:01,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:01,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:01,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:10:01,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:01,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:01,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:01,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:01,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:10:01,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:01,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:10:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:01,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:01,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:01,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:01,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:01,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:10:01,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:01,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:01,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:01,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:01,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:10:01,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:01,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:10:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:01,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:01,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:01,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:01,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:01,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:10:01,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:01,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:10:01,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:01,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:10:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:01,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:01,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:01,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:01,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:01,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:01,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:01,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:01,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:01,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:01,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:01,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 05:10:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:01,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:01,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:01,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:01,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:01,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:01,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:01,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:01,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:01,175 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 05:10:01,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70413424] [2020-09-25 05:10:01,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:10:01,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:10:01,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947699780] [2020-09-25 05:10:01,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:10:01,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:10:01,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:10:01,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:10:01,180 INFO L87 Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 4 states. [2020-09-25 05:10:01,817 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:10:03,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:10:03,755 INFO L93 Difference]: Finished difference Result 599 states and 685 transitions. [2020-09-25 05:10:03,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:10:03,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-09-25 05:10:03,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:10:03,760 INFO L225 Difference]: With dead ends: 599 [2020-09-25 05:10:03,760 INFO L226 Difference]: Without dead ends: 452 [2020-09-25 05:10:03,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:10:03,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-09-25 05:10:03,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 398. [2020-09-25 05:10:03,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-25 05:10:03,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 441 transitions. [2020-09-25 05:10:03,840 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 441 transitions. Word has length 152 [2020-09-25 05:10:03,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:10:03,841 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 441 transitions. [2020-09-25 05:10:03,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:10:03,841 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 441 transitions. [2020-09-25 05:10:03,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 05:10:03,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:10:03,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:10:03,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:10:03,844 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:10:03,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:10:03,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1954752290, now seen corresponding path program 1 times [2020-09-25 05:10:03,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:10:03,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919537365] [2020-09-25 05:10:03,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:10:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:03,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:04,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:05,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:08,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:08,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 05:10:08,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:10:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 05:10:08,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:08,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:10:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 05:10:08,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:10:08,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:09,276 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:10:09,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:10:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:09,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:09,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:09,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:10:09,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 05:10:09,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:09,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:09,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:09,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:10:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:09,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:09,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:09,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:09,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:09,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:09,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:09,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:09,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:09,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:10:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:09,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:09,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:09,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:09,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:09,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:09,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:09,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:09,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:09,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:09,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:09,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:09,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:10:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:09,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:09,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:09,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:09,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:09,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:10:09,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:09,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:09,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:09,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:09,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:09,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:09,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:10:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:09,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:09,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:09,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:09,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:09,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:09,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:09,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:09,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:09,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 05:10:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:09,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:09,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:09,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:10:09,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:09,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:10:09,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:09,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:09,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:09,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:09,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:10:09,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:09,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:10:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:09,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:09,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:09,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:09,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:09,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:10:09,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:09,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:10:09,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:09,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:10:09,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:09,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:10:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:09,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:09,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:09,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:09,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:09,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:10:09,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:09,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:10:09,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:09,595 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 05:10:09,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919537365] [2020-09-25 05:10:09,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:10:09,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:10:09,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434109423] [2020-09-25 05:10:09,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:10:09,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:10:09,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:10:09,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:10:09,598 INFO L87 Difference]: Start difference. First operand 398 states and 441 transitions. Second operand 9 states. [2020-09-25 05:10:10,118 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:11,502 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:10:11,841 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:10:12,212 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:10:12,582 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:10:12,896 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:10:13,488 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:10:13,793 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:10:14,157 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:10:15,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:10:15,273 INFO L93 Difference]: Finished difference Result 935 states and 1119 transitions. [2020-09-25 05:10:15,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:10:15,274 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 05:10:15,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:10:15,280 INFO L225 Difference]: With dead ends: 935 [2020-09-25 05:10:15,281 INFO L226 Difference]: Without dead ends: 647 [2020-09-25 05:10:15,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:10:15,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2020-09-25 05:10:15,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 572. [2020-09-25 05:10:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-09-25 05:10:15,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 652 transitions. [2020-09-25 05:10:15,364 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 652 transitions. Word has length 161 [2020-09-25 05:10:15,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:10:15,365 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 652 transitions. [2020-09-25 05:10:15,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:10:15,365 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 652 transitions. [2020-09-25 05:10:15,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 05:10:15,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:10:15,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:10:15,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:10:15,369 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:10:15,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:10:15,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1944721932, now seen corresponding path program 1 times [2020-09-25 05:10:15,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:10:15,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635108958] [2020-09-25 05:10:15,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:10:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:15,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:15,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:19,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:19,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 05:10:19,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:10:19,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4135 [2020-09-25 05:10:19,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:19,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 05:10:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:10:19,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:19,868 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:10:19,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:10:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:19,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:19,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:19,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:10:19,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:19,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 05:10:19,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:19,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:19,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:19,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:19,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:19,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:19,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:10:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:19,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:19,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:19,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:19,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:19,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:19,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:19,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:19,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:19,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:19,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:10:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:19,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:19,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:19,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:19,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:19,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:19,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:19,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:19,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:19,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:19,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:19,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:19,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:10:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:19,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:19,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:19,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:19,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:19,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:10:19,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:19,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:19,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:19,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:20,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:10:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:20,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:20,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:20,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:10:20,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:20,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:10:20,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:20,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:20,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:20,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:20,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:20,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:20,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 05:10:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:20,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:20,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:20,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:10:20,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:20,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 05:10:20,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:20,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:20,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:20,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 05:10:20,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:10:20,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:20,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:10:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:20,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:20,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:20,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 05:10:20,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:20,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 05:10:20,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:20,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:10:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:10:20,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:20,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:10:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:20,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:20,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:20,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:10:20,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:20,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 05:10:20,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:20,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:10:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:10:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:10:20,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:20,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:10:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:20,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:20,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:20,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:10:20,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:20,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:10:20,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:20,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:20,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:10:20,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:10:20,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:10:20,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:20,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:10:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:20,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:20,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:20,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:10:20,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:20,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:10:20,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:20,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:20,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 05:10:20,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:20,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:20,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 05:10:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:20,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:20,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:20,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:20,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:20,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:10:20,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:20,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:20,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:20,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:20,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:20,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:10:20,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 05:10:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:20,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:20,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:10:20,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:10:20,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:10:20,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:10:20,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:10:20,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:10:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:10:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:10:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:10:20,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:10:20,308 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 05:10:20,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635108958] [2020-09-25 05:10:20,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:10:20,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:10:20,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100428235] [2020-09-25 05:10:20,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:10:20,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:10:20,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:10:20,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:10:20,312 INFO L87 Difference]: Start difference. First operand 572 states and 652 transitions. Second operand 8 states. [2020-09-25 05:10:21,484 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:21,798 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:10:22,106 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:22,429 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:10:22,714 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:10:23,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:10:23,740 INFO L93 Difference]: Finished difference Result 1144 states and 1378 transitions. [2020-09-25 05:10:23,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:10:23,742 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-09-25 05:10:23,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:10:23,747 INFO L225 Difference]: With dead ends: 1144 [2020-09-25 05:10:23,747 INFO L226 Difference]: Without dead ends: 682 [2020-09-25 05:10:23,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:10:23,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2020-09-25 05:10:23,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 587. [2020-09-25 05:10:23,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-09-25 05:10:23,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 668 transitions. [2020-09-25 05:10:23,862 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 668 transitions. Word has length 190 [2020-09-25 05:10:23,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:10:23,863 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 668 transitions. [2020-09-25 05:10:23,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:10:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 668 transitions. [2020-09-25 05:10:23,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 05:10:23,866 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:10:23,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:10:23,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:10:23,866 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:10:23,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:10:23,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1376375188, now seen corresponding path program 1 times [2020-09-25 05:10:23,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:10:23,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028194094] [2020-09-25 05:10:23,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:10:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:10:23,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:10:24,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking...