/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:17:18,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:17:18,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:17:18,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:17:18,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:17:18,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:17:18,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:17:18,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:17:18,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:17:18,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:17:18,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:17:18,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:17:18,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:17:18,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:17:18,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:17:18,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:17:18,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:17:18,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:17:18,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:17:18,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:17:18,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:17:18,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:17:18,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:17:18,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:17:18,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:17:18,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:17:18,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:17:18,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:17:18,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:17:18,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:17:18,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:17:18,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:17:18,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:17:18,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:17:18,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:17:18,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:17:18,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:17:18,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:17:18,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:17:18,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:17:18,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:17:18,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:17:18,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:17:18,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:17:18,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:17:18,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:17:18,326 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:17:18,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:17:18,326 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:17:18,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:17:18,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:17:18,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:17:18,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:17:18,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:17:18,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:17:18,328 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:17:18,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:17:18,328 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:17:18,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:17:18,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:17:18,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:17:18,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:17:18,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:17:18,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:17:18,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:17:18,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:17:18,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:17:18,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:17:18,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:17:18,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:17:18,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:17:18,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:17:18,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:17:18,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:17:18,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:17:18,807 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:17:18,807 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:17:18,808 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-09-25 06:17:18,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7957d58f/49658d6b2ffb4acbb93220b04136fa75/FLAGd1088039b [2020-09-25 06:17:19,475 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:17:19,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-09-25 06:17:19,491 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7957d58f/49658d6b2ffb4acbb93220b04136fa75/FLAGd1088039b [2020-09-25 06:17:19,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7957d58f/49658d6b2ffb4acbb93220b04136fa75 [2020-09-25 06:17:19,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:17:19,781 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:17:19,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:17:19,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:17:19,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:17:19,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:17:19" (1/1) ... [2020-09-25 06:17:19,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:19, skipping insertion in model container [2020-09-25 06:17:19,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:17:19" (1/1) ... [2020-09-25 06:17:19,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:17:19,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:17:20,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:17:20,266 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:17:20,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:17:20,510 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:17:20,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:20 WrapperNode [2020-09-25 06:17:20,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:17:20,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:17:20,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:17:20,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:17:20,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:20" (1/1) ... [2020-09-25 06:17:20,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:20" (1/1) ... [2020-09-25 06:17:20,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:20" (1/1) ... [2020-09-25 06:17:20,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:20" (1/1) ... [2020-09-25 06:17:20,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:20" (1/1) ... [2020-09-25 06:17:20,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:20" (1/1) ... [2020-09-25 06:17:20,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:20" (1/1) ... [2020-09-25 06:17:20,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:17:20,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:17:20,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:17:20,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:17:20,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:17:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:17:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:17:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:17:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:17:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:17:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:17:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:17:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:17:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:17:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:17:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:17:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:17:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:17:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:17:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:17:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:17:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:17:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:17:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:17:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:17:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:17:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:17:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:17:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:17:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:17:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:17:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:17:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:17:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:17:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:17:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:17:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:17:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:17:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:17:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:17:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:17:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:17:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:17:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:17:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:17:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:17:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:17:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:17:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:17:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:17:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:17:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:17:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:17:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:17:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:17:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:17:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:17:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:17:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:17:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:17:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:17:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:17:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:17:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:17:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:17:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:17:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:17:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:17:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:17:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:17:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:17:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:17:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:17:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:17:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:17:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:17:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:17:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:17:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:17:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:17:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:17:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:17:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:17:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:17:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:17:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:17:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:17:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:17:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:17:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:17:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:17:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:17:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:17:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:17:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:17:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:17:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:17:21,872 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:17:21,872 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:17:21,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:17:21 BoogieIcfgContainer [2020-09-25 06:17:21,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:17:21,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:17:21,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:17:21,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:17:21,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:17:19" (1/3) ... [2020-09-25 06:17:21,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185c0b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:17:21, skipping insertion in model container [2020-09-25 06:17:21,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:17:20" (2/3) ... [2020-09-25 06:17:21,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185c0b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:17:21, skipping insertion in model container [2020-09-25 06:17:21,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:17:21" (3/3) ... [2020-09-25 06:17:21,889 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2020-09-25 06:17:21,901 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:17:21,912 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:17:21,936 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:17:21,973 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:17:21,973 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:17:21,973 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:17:21,973 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:17:21,973 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:17:21,974 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:17:21,974 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:17:21,974 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:17:22,006 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states. [2020-09-25 06:17:22,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:17:22,024 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:17:22,026 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 06:17:22,026 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:17:22,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:17:22,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1299916906, now seen corresponding path program 1 times [2020-09-25 06:17:22,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:17:22,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475779459] [2020-09-25 06:17:22,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:17:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:22,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:22,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:24,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:25,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:27,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:27,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:17:27,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:17:27,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 06:17:27,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:27,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:27,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:27,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:17:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:27,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:17:27,835 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:17:27,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:17:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:27,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:27,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:27,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:17:27,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:27,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 06:17:27,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:27,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:27,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:27,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:27,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:27,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:28,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:17:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:28,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:28,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:28,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:28,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:28,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:17:28,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:28,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:28,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:28,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:28,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:28,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:28,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:17:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:28,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:28,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:28,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:28,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:28,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:28,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:28,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:28,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:28,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:28,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:17:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:28,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:28,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:28,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:28,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:28,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:17:28,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:28,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:28,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:28,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:28,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:28,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:28,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:17:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:28,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:28,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:28,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:28,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:28,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:17:28,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:28,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:28,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:28,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:28,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:28,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:28,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:17:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:28,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:28,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:28,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:28,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:28,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:17:28,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:28,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:28,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:28,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:28,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:28,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:17:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:28,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:28,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:28,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:28,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:28,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:17:28,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:28,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:28,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:28,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:28,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:28,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:28,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:17:28,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475779459] [2020-09-25 06:17:28,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:17:28,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:17:28,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717827038] [2020-09-25 06:17:28,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:17:28,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:17:28,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:17:28,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:17:28,218 INFO L87 Difference]: Start difference. First operand 307 states. Second operand 3 states. [2020-09-25 06:17:29,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:17:29,481 INFO L93 Difference]: Finished difference Result 481 states and 577 transitions. [2020-09-25 06:17:29,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:17:29,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:17:29,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:17:29,518 INFO L225 Difference]: With dead ends: 481 [2020-09-25 06:17:29,519 INFO L226 Difference]: Without dead ends: 299 [2020-09-25 06:17:29,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:17:29,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-25 06:17:29,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 256. [2020-09-25 06:17:29,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-09-25 06:17:29,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 280 transitions. [2020-09-25 06:17:29,650 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 280 transitions. Word has length 142 [2020-09-25 06:17:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:17:29,651 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 280 transitions. [2020-09-25 06:17:29,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:17:29,652 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 280 transitions. [2020-09-25 06:17:29,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:17:29,657 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:17:29,658 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 06:17:29,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:17:29,658 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:17:29,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:17:29,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1066330747, now seen corresponding path program 1 times [2020-09-25 06:17:29,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:17:29,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007221650] [2020-09-25 06:17:29,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:17:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:29,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:29,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:31,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:32,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:32,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:34,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:34,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:17:34,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:17:34,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 06:17:34,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:34,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:34,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:34,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:17:34,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:17:34,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:17:35,074 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:17:35,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:17:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:35,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:35,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:35,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:17:35,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:35,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 06:17:35,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:35,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:35,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:17:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:35,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:35,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:35,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:35,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:35,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:17:35,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:35,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:35,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:35,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:17:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:35,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:35,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:35,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:35,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:35,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:35,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:35,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:35,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:35,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:35,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:35,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:35,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:17:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:35,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:35,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:35,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:35,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:35,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:17:35,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:35,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:35,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:35,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:35,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:35,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:35,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:17:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:35,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:35,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:35,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:35,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:35,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:17:35,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:35,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:35,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:35,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:35,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:35,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:35,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:17:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:35,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:35,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:35,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:35,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:35,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:35,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:35,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:35,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:35,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:35,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:35,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:17:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:35,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:35,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:35,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:35,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:35,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:35,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:35,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:35,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:35,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:35,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:35,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:35,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:17:35,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007221650] [2020-09-25 06:17:35,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:17:35,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:17:35,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163383034] [2020-09-25 06:17:35,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:17:35,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:17:35,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:17:35,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:17:35,280 INFO L87 Difference]: Start difference. First operand 256 states and 280 transitions. Second operand 4 states. [2020-09-25 06:17:35,961 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:17:36,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:17:36,974 INFO L93 Difference]: Finished difference Result 392 states and 444 transitions. [2020-09-25 06:17:36,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:17:36,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:17:36,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:17:36,980 INFO L225 Difference]: With dead ends: 392 [2020-09-25 06:17:36,980 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 06:17:36,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 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 06:17:36,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 06:17:37,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 246. [2020-09-25 06:17:37,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-09-25 06:17:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 267 transitions. [2020-09-25 06:17:37,026 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 267 transitions. Word has length 143 [2020-09-25 06:17:37,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:17:37,027 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 267 transitions. [2020-09-25 06:17:37,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:17:37,027 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 267 transitions. [2020-09-25 06:17:37,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 06:17:37,030 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:17:37,030 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 06:17:37,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:17:37,031 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:17:37,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:17:37,031 INFO L82 PathProgramCache]: Analyzing trace with hash 449926668, now seen corresponding path program 1 times [2020-09-25 06:17:37,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:17:37,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696002370] [2020-09-25 06:17:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:17:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:37,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:37,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:38,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:42,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:42,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:17:42,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:17:42,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:17:42,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:42,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:42,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:17:42,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 06:17:42,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 06:17:42,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:42,462 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:17:42,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:17:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:42,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:42,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:42,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:17:42,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:42,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 06:17:42,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:42,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:42,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:42,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:42,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:17:42,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:42,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:17:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:42,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:42,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:42,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:42,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:42,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:17:42,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:42,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:42,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:17:42,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:42,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:17:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:42,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:42,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:42,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:42,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:42,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:17:42,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:42,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:17:42,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:42,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:17:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:42,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:42,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:42,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:42,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:42,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 06:17:42,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:42,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:42,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:17:42,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:17:42,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:17:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:42,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:42,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:42,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:42,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:42,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:17:42,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:42,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:17:42,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:42,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:17:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:42,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:42,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:42,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:42,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:42,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:17:42,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:42,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:42,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:42,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:42,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:42,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:42,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:17:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:42,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:42,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:42,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:42,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:42,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:17:42,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:42,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:42,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:17:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:42,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:17:43,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:17:43,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696002370] [2020-09-25 06:17:43,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:17:43,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:17:43,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154681193] [2020-09-25 06:17:43,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:17:43,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:17:43,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:17:43,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:17:43,018 INFO L87 Difference]: Start difference. First operand 246 states and 267 transitions. Second operand 5 states. [2020-09-25 06:17:43,682 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:17:44,320 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:17:45,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:17:45,911 INFO L93 Difference]: Finished difference Result 649 states and 752 transitions. [2020-09-25 06:17:45,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:17:45,912 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-09-25 06:17:45,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:17:45,917 INFO L225 Difference]: With dead ends: 649 [2020-09-25 06:17:45,917 INFO L226 Difference]: Without dead ends: 513 [2020-09-25 06:17:45,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:17:45,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2020-09-25 06:17:46,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 446. [2020-09-25 06:17:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-09-25 06:17:46,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 502 transitions. [2020-09-25 06:17:46,036 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 502 transitions. Word has length 152 [2020-09-25 06:17:46,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:17:46,037 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 502 transitions. [2020-09-25 06:17:46,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:17:46,037 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 502 transitions. [2020-09-25 06:17:46,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:17:46,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:17:46,041 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 06:17:46,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:17:46,042 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:17:46,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:17:46,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1074396656, now seen corresponding path program 1 times [2020-09-25 06:17:46,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:17:46,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219221739] [2020-09-25 06:17:46,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:17:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:46,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:46,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:46,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:49,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:51,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:51,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 06:17:51,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:17:51,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 06:17:51,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:51,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:17:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 06:17:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:17:51,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:17:51,465 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:17:51,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:17:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:51,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:51,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:51,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:17:51,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:51,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 06:17:51,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:51,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:51,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:51,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:17:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:51,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:51,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:51,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:51,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:51,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:17:51,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:51,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:51,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:51,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:17:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:51,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:51,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:51,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:51,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:51,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:17:51,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:51,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:51,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:51,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:51,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:51,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:51,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:17:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:51,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:51,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:51,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:51,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:17:51,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:51,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:51,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:51,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:17:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:51,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:51,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:51,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:17:51,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:51,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:17:51,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:51,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:51,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:17:51,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:51,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:17:51,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:51,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 06:17:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:51,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:51,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:51,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:17:51,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:17:51,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:51,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:17:51,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:51,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:17:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:51,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:51,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:51,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:51,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:51,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:17:51,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:51,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:17:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:17:51,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:51,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:17:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:51,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:51,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:17:51,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:17:51,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:17:51,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:17:51,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:17:51,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:17:51,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:17:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:17:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:17:51,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:17:51,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:17:51,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [219221739] [2020-09-25 06:17:51,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:17:51,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:17:51,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135874996] [2020-09-25 06:17:51,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:17:51,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:17:51,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:17:51,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:17:51,838 INFO L87 Difference]: Start difference. First operand 446 states and 502 transitions. Second operand 9 states. [2020-09-25 06:17:52,456 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:17:53,611 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:17:53,920 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:17:54,279 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:17:54,613 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 06:17:54,904 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:17:55,441 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:17:55,761 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:17:56,093 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:17:56,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:17:56,910 INFO L93 Difference]: Finished difference Result 1026 states and 1237 transitions. [2020-09-25 06:17:56,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:17:56,911 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 06:17:56,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:17:56,917 INFO L225 Difference]: With dead ends: 1026 [2020-09-25 06:17:56,918 INFO L226 Difference]: Without dead ends: 690 [2020-09-25 06:17:56,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:17:56,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2020-09-25 06:17:57,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 609. [2020-09-25 06:17:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-09-25 06:17:57,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 696 transitions. [2020-09-25 06:17:57,027 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 696 transitions. Word has length 161 [2020-09-25 06:17:57,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:17:57,027 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 696 transitions. [2020-09-25 06:17:57,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:17:57,028 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 696 transitions. [2020-09-25 06:17:57,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 06:17:57,031 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:17:57,031 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 06:17:57,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:17:57,031 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:17:57,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:17:57,032 INFO L82 PathProgramCache]: Analyzing trace with hash -2087428370, now seen corresponding path program 1 times [2020-09-25 06:17:57,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:17:57,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108922410] [2020-09-25 06:17:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:17:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:17:57,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:17:57,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 06:18:01,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:18:01,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4385 [2020-09-25 06:18:01,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:18:01,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 06:18:01,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:18:01,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:01,720 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:18:01,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:18:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:18:01,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:01,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 06:18:01,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:01,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:01,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:18:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:01,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:01,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:01,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:01,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:01,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:18:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:01,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:01,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:01,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:01,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:01,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:01,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:01,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:18:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:01,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:01,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:01,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:01,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:01,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:01,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:18:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:18:01,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:01,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:01,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:01,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:01,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:01,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:01,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:18:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:01,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:01,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:18:01,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:01,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 06:18:01,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:01,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:18:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 06:18:01,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:18:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:01,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:18:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:01,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:02,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:02,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 06:18:02,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:02,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 06:18:02,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:02,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:02,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:18:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 06:18:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:18:02,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:02,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:18:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:02,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:02,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:02,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:18:02,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:02,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 06:18:02,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:02,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:02,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:18:02,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:02,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:18:02,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:02,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:18:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:02,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:02,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:02,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:18:02,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:02,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:18:02,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:02,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:18:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:02,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:02,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:18:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:02,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:02,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:02,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:18:02,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:02,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:02,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:02,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:02,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:02,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 06:18:02,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:02,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:02,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 06:18:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:02,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:02,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:02,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:02,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:02,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:18:02,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:02,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:02,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:02,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:02,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:02,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:18:02,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 06:18:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:02,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:02,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:18:02,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:18:02,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:18:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:18:02,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:18:02,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:18:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:18:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:18:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:18:02,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:18:02,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:18:02,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108922410] [2020-09-25 06:18:02,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:18:02,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:18:02,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829256558] [2020-09-25 06:18:02,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:18:02,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:18:02,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:18:02,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:18:02,245 INFO L87 Difference]: Start difference. First operand 609 states and 696 transitions. Second operand 9 states. [2020-09-25 06:18:03,534 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:03,770 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:18:04,100 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:18:04,432 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:18:04,782 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:18:05,108 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:18:05,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:18:05,852 INFO L93 Difference]: Finished difference Result 1235 states and 1474 transitions. [2020-09-25 06:18:05,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:18:05,853 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-25 06:18:05,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:18:05,861 INFO L225 Difference]: With dead ends: 1235 [2020-09-25 06:18:05,861 INFO L226 Difference]: Without dead ends: 736 [2020-09-25 06:18:05,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:18:05,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2020-09-25 06:18:06,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 628. [2020-09-25 06:18:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-09-25 06:18:06,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 716 transitions. [2020-09-25 06:18:06,006 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 716 transitions. Word has length 190 [2020-09-25 06:18:06,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:18:06,007 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 716 transitions. [2020-09-25 06:18:06,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:18:06,007 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 716 transitions. [2020-09-25 06:18:06,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 06:18:06,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:06,011 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 06:18:06,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:18:06,011 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:06,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:06,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1233668750, now seen corresponding path program 1 times [2020-09-25 06:18:06,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:06,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960796807] [2020-09-25 06:18:06,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:06,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:06,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking...