/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=0.8 --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_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:32:40,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:32:40,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:32:40,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:32:40,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:32:40,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:32:40,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:32:40,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:32:40,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:32:40,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:32:40,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:32:40,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:32:40,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:32:40,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:32:40,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:32:40,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:32:40,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:32:40,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:32:40,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:32:40,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:32:40,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:32:40,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:32:40,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:32:40,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:32:40,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:32:40,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:32:40,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:32:40,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:32:40,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:32:40,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:32:40,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:32:40,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:32:40,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:32:40,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:32:40,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:32:40,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:32:40,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:32:40,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:32:40,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:32:40,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:32:40,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:32:40,923 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 07:32:40,950 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:32:40,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:32:40,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:32:40,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:32:40,953 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:32:40,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:32:40,953 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:32:40,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:32:40,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:32:40,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:32:40,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:32:40,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:32:40,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:32:40,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:32:40,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:32:40,955 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:32:40,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:32:40,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:32:40,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:32:40,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:32:40,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:32:40,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:32:40,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:32:40,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:32:40,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:32:40,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:32:40,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:32:40,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:32:40,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:32:40,958 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:32:41,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:32:41,482 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:32:41,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:32:41,490 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:32:41,490 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:32:41,492 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-25 07:32:41,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/919ce5fb0/d1e358b749124fcb8df775b56cd118d9/FLAG5fa18b8ea [2020-09-25 07:32:42,266 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:32:42,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-25 07:32:42,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/919ce5fb0/d1e358b749124fcb8df775b56cd118d9/FLAG5fa18b8ea [2020-09-25 07:32:42,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/919ce5fb0/d1e358b749124fcb8df775b56cd118d9 [2020-09-25 07:32:42,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:32:42,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:32:42,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:32:42,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:32:42,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:32:42,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:32:42" (1/1) ... [2020-09-25 07:32:42,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54cc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:42, skipping insertion in model container [2020-09-25 07:32:42,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:32:42" (1/1) ... [2020-09-25 07:32:42,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:32:42,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:32:43,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:32:43,154 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:32:43,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:32:43,278 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:32:43,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:43 WrapperNode [2020-09-25 07:32:43,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:32:43,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:32:43,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:32:43,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:32:43,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:43" (1/1) ... [2020-09-25 07:32:43,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:43" (1/1) ... [2020-09-25 07:32:43,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:43" (1/1) ... [2020-09-25 07:32:43,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:43" (1/1) ... [2020-09-25 07:32:43,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:43" (1/1) ... [2020-09-25 07:32:43,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:43" (1/1) ... [2020-09-25 07:32:43,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:43" (1/1) ... [2020-09-25 07:32:43,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:32:43,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:32:43,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:32:43,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:32:43,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:43" (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 07:32:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:32:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:32:43,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:32:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:32:43,492 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:32:43,493 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:32:43,493 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:32:43,494 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:32:43,494 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:32:43,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:32:43,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:32:43,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:32:43,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:32:43,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:32:43,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:32:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:32:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:32:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:32:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:32:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:32:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:32:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:32:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:32:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:32:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:32:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:32:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:32:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:32:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:32:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:32:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:32:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:32:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:32:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:32:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:32:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:32:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:32:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:32:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:32:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:32:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:32:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:32:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:32:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:32:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:32:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:32:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:32:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:32:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:32:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:32:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:32:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:32:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:32:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:32:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:32:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:32:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:32:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:32:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:32:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:32:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:32:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:32:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:32:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:32:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:32:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:32:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:32:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:32:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:32:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:32:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:32:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:32:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:32:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:32:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:32:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:32:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:32:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:32:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:32:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:32:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:32:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:32:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:32:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:32:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:32:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:32:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:32:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:32:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:32:43,517 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:32:43,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:32:43,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:32:43,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:32:43,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:32:44,750 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:32:44,751 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:32:44,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:32:44 BoogieIcfgContainer [2020-09-25 07:32:44,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:32:44,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:32:44,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:32:44,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:32:44,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:32:42" (1/3) ... [2020-09-25 07:32:44,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd8c27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:32:44, skipping insertion in model container [2020-09-25 07:32:44,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:32:43" (2/3) ... [2020-09-25 07:32:44,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd8c27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:32:44, skipping insertion in model container [2020-09-25 07:32:44,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:32:44" (3/3) ... [2020-09-25 07:32:44,777 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-09-25 07:32:44,791 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:32:44,807 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:32:44,832 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:32:44,877 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:32:44,878 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:32:44,878 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:32:44,878 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:32:44,878 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:32:44,878 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:32:44,878 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:32:44,879 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:32:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 07:32:44,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 07:32:44,956 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:32:44,958 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] [2020-09-25 07:32:44,959 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:32:44,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:32:44,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1392630044, now seen corresponding path program 1 times [2020-09-25 07:32:44,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:32:44,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744827634] [2020-09-25 07:32:44,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:32:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:45,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:45,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:47,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:50,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:50,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 07:32:50,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:32:50,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 07:32:50,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:50,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:50,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:50,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:32:50,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:50,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:32:50,880 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:32:50,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:32:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:50,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:51,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:51,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:32:51,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:51,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 07:32:51,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:51,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:51,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:51,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:51,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:51,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:51,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:32:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:51,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:51,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:51,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:51,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:51,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:51,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:51,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:51,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:51,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:32:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:51,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:51,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:51,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:51,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:51,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:51,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:51,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:51,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:51,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:51,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:32:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:51,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:51,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:51,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:51,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:51,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:32:51,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:51,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:51,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:51,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:51,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:32:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:51,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:51,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:51,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:51,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:51,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:51,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:51,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:51,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:51,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:51,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:32:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:51,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:51,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:51,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:51,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:51,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:51,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:51,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:51,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:51,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:51,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:51,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:51,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:32:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:51,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:51,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:51,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:51,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:51,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:51,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:51,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:51,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:51,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:51,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 07:32:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:51,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:51,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:51,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:51,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:51,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:32:51,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:51,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:51,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:51,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:51,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:51,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:51,177 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 07:32:51,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744827634] [2020-09-25 07:32:51,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:32:51,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:32:51,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371443945] [2020-09-25 07:32:51,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:32:51,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:32:51,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:32:51,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:32:51,213 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-09-25 07:32:52,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:32:52,922 INFO L93 Difference]: Finished difference Result 491 states and 589 transitions. [2020-09-25 07:32:52,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:32:52,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 07:32:52,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:32:52,945 INFO L225 Difference]: With dead ends: 491 [2020-09-25 07:32:52,946 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 07:32:52,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:32:52,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 07:32:53,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2020-09-25 07:32:53,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 07:32:53,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 286 transitions. [2020-09-25 07:32:53,065 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 286 transitions. Word has length 153 [2020-09-25 07:32:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:32:53,066 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 286 transitions. [2020-09-25 07:32:53,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:32:53,066 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 286 transitions. [2020-09-25 07:32:53,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 07:32:53,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:32:53,070 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] [2020-09-25 07:32:53,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:32:53,071 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:32:53,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:32:53,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1904681825, now seen corresponding path program 1 times [2020-09-25 07:32:53,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:32:53,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127441473] [2020-09-25 07:32:53,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:32:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:53,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:53,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:54,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:32:58,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:32:58,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 07:32:58,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:32:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:32:58,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:32:58,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,444 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:32:58,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:32:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:32:58,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 07:32:58,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:58,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:32:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:58,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:58,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:58,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:58,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:32:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:58,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:58,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:58,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:58,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:32:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:58,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:32:58,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:58,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:32:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:32:58,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:32:58,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:32:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:58,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 07:32:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:58,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:58,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:58,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:58,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:58,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:32:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:58,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:58,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:58,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:58,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 07:32:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:32:58,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:32:58,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:32:58,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:32:58,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:32:58,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:32:58,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:32:58,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:32:58,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:32:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:32:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:32:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:32:58,660 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 07:32:58,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127441473] [2020-09-25 07:32:58,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:32:58,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:32:58,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662738582] [2020-09-25 07:32:58,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:32:58,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:32:58,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:32:58,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:32:58,665 INFO L87 Difference]: Start difference. First operand 261 states and 286 transitions. Second operand 4 states. [2020-09-25 07:32:59,294 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:33:00,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:00,325 INFO L93 Difference]: Finished difference Result 402 states and 456 transitions. [2020-09-25 07:33:00,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:33:00,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 07:33:00,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:00,332 INFO L225 Difference]: With dead ends: 402 [2020-09-25 07:33:00,332 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 07:33:00,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 07:33:00,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 07:33:00,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 251. [2020-09-25 07:33:00,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-09-25 07:33:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 273 transitions. [2020-09-25 07:33:00,378 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 273 transitions. Word has length 154 [2020-09-25 07:33:00,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:00,379 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 273 transitions. [2020-09-25 07:33:00,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:33:00,379 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 273 transitions. [2020-09-25 07:33:00,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 07:33:00,381 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:00,381 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] [2020-09-25 07:33:00,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:33:00,382 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:00,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:00,383 INFO L82 PathProgramCache]: Analyzing trace with hash -533123061, now seen corresponding path program 1 times [2020-09-25 07:33:00,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:00,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340165941] [2020-09-25 07:33:00,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:00,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:01,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:04,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:04,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 07:33:04,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:33:04,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3676 [2020-09-25 07:33:04,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:04,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:33:04,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 07:33:04,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-25 07:33:04,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:04,468 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:04,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:04,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:04,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:04,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:04,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:04,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 07:33:04,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:04,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:04,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:04,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:04,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 07:33:04,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:04,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:04,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:04,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:04,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:04,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:04,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:04,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:04,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:04,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:04,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:04,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:04,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:04,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:04,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:04,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:04,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:04,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:04,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:04,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:04,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:04,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:04,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:04,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:33:04,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:04,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:04,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:04,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:04,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:04,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:33:04,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:04,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:04,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:04,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:04,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:04,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:04,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:04,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:04,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:04,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:33:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:04,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:04,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:04,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:04,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:04,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:04,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:04,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:04,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:04,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:04,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:04,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 07:33:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:04,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:04,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:04,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:04,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:04,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:33:04,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:04,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:04,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:33:04,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:04,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:04,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:04,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 07:33:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:04,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:04,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:04,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:04,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:04,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:04,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:04,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:04,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:04,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:04,931 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 07:33:04,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340165941] [2020-09-25 07:33:04,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:04,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:33:04,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99600711] [2020-09-25 07:33:04,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:33:04,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:04,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:33:04,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:33:04,936 INFO L87 Difference]: Start difference. First operand 251 states and 273 transitions. Second operand 8 states. [2020-09-25 07:33:05,508 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:33:07,272 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:07,677 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:33:08,022 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:08,394 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:33:08,712 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:33:09,025 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:09,336 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:10,082 INFO L93 Difference]: Finished difference Result 562 states and 656 transitions. [2020-09-25 07:33:10,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:33:10,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 163 [2020-09-25 07:33:10,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:10,094 INFO L225 Difference]: With dead ends: 562 [2020-09-25 07:33:10,094 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 07:33:10,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:33:10,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 07:33:10,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 386. [2020-09-25 07:33:10,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-25 07:33:10,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 435 transitions. [2020-09-25 07:33:10,175 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 435 transitions. Word has length 163 [2020-09-25 07:33:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:10,176 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 435 transitions. [2020-09-25 07:33:10,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:33:10,176 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 435 transitions. [2020-09-25 07:33:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 07:33:10,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:10,179 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] [2020-09-25 07:33:10,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:33:10,180 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:10,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:10,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1817589318, now seen corresponding path program 1 times [2020-09-25 07:33:10,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:10,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075409478] [2020-09-25 07:33:10,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:10,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:11,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:11,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 07:33:11,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:11,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 948 [2020-09-25 07:33:11,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:11,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:11,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:33:11,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 07:33:11,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 07:33:11,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:33:11,483 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:11,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:11,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:11,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:11,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:11,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:11,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-25 07:33:11,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:11,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:11,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:11,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 07:33:11,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:11,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:11,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:11,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:11,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:11,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:11,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:11,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:11,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:11,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:11,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:11,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:11,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:33:11,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:11,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:11,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:11,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:11,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:11,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:11,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:11,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:11,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:11,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:11,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:11,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:11,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:11,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:11,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:33:11,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:11,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:11,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:11,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:11,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:11,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:11,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:11,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:11,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:11,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:11,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:11,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:33:11,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:11,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:11,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:11,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 07:33:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:11,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:11,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:11,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:33:11,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:11,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:33:11,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:11,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:11,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:11,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:11,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:33:11,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:11,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:33:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:11,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:11,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:11,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:11,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:11,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:11,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:11,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:11,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:11,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:11,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:11,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:11,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 07:33:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:11,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:11,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:11,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:11,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:11,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:11,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:11,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:11,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:11,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 07:33:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:11,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:11,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:11,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:11,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:11,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:11,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:11,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:11,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:11,935 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 07:33:11,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075409478] [2020-09-25 07:33:11,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:11,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:33:11,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120955044] [2020-09-25 07:33:11,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:33:11,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:11,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:33:11,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:33:11,938 INFO L87 Difference]: Start difference. First operand 386 states and 435 transitions. Second operand 6 states. [2020-09-25 07:33:12,464 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:33:13,435 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:33:15,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:15,751 INFO L93 Difference]: Finished difference Result 1141 states and 1350 transitions. [2020-09-25 07:33:15,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:33:15,752 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-25 07:33:15,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:15,758 INFO L225 Difference]: With dead ends: 1141 [2020-09-25 07:33:15,759 INFO L226 Difference]: Without dead ends: 865 [2020-09-25 07:33:15,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:33:15,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2020-09-25 07:33:15,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 799. [2020-09-25 07:33:15,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 799 states. [2020-09-25 07:33:15,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 923 transitions. [2020-09-25 07:33:15,909 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 923 transitions. Word has length 168 [2020-09-25 07:33:15,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:15,910 INFO L479 AbstractCegarLoop]: Abstraction has 799 states and 923 transitions. [2020-09-25 07:33:15,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:33:15,910 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 923 transitions. [2020-09-25 07:33:15,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 07:33:15,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:15,915 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] [2020-09-25 07:33:15,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:33:15,915 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:15,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:15,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1221546, now seen corresponding path program 1 times [2020-09-25 07:33:15,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:15,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18058653] [2020-09-25 07:33:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:16,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:16,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:17,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:18,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:20,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:20,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 07:33:20,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:33:20,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 07:33:20,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:20,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:33:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 07:33:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 07:33:21,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:21,278 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:21,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:21,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:21,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:21,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:21,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 07:33:21,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:21,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:21,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:21,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:21,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:21,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:21,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:21,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:21,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:21,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:21,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:21,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:21,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:21,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:21,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:21,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:21,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:21,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:21,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:21,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:21,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:21,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:21,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:21,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:21,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:21,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:21,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:21,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:21,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:33:21,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:21,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:21,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:21,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:21,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:21,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:21,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:21,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:21,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:21,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:21,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:21,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:21,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:21,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:21,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:21,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:21,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:21,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:21,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:33:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:21,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:21,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:21,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:33:21,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:21,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:21,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:21,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:21,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:21,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:21,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:21,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:21,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:33:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:21,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:21,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:21,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:33:21,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:21,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:33:21,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:21,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:21,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:33:21,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:21,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 07:33:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:21,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:21,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:21,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:21,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:21,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:33:21,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:21,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:21,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:21,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:21,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:21,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:21,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 07:33:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:21,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:21,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:21,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:21,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:21,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:33:21,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:21,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:21,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:21,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:21,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:21,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:21,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 07:33:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:21,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:21,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:21,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:21,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:21,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:33:21,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:21,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:33:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:21,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:21,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:21,727 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 07:33:21,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18058653] [2020-09-25 07:33:21,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:21,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:33:21,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004734433] [2020-09-25 07:33:21,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:33:21,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:21,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:33:21,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:33:21,732 INFO L87 Difference]: Start difference. First operand 799 states and 923 transitions. Second operand 10 states. [2020-09-25 07:33:23,133 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:33:23,387 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 07:33:25,392 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 193 [2020-09-25 07:33:25,997 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:33:26,589 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-09-25 07:33:27,031 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:33:27,445 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:33:27,770 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:33:28,076 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188