/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=SMALLEST --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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:01:55,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:01:55,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:01:55,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:01:55,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:01:55,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:01:55,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:01:55,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:01:55,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:01:55,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:01:55,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:01:55,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:01:55,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:01:55,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:01:55,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:01:55,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:01:55,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:01:55,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:01:55,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:01:55,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:01:55,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:01:55,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:01:55,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:01:55,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:01:55,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:01:55,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:01:55,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:01:55,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:01:55,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:01:55,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:01:55,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:01:55,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:01:55,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:01:55,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:01:55,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:01:55,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:01:55,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:01:55,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:01:55,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:01:55,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:01:55,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:01:55,938 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 [2020-09-24 18:01:55,967 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:01:55,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:01:55,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:01:55,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:01:55,970 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:01:55,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:01:55,970 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:01:55,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:01:55,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:01:55,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:01:55,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:01:55,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:01:55,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:01:55,971 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:01:55,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:01:55,972 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:01:55,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:01:55,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:01:55,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:01:55,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:01:55,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:01:55,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:01:55,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:01:55,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:01:55,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:01:55,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:01:55,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:01:55,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:01:55,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:01:55,975 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:01:56,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:01:56,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:01:56,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:01:56,482 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:01:56,485 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:01:56,487 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-24 18:01:56,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/687175bc4/4d7f9f27bf484c0fbf10740dae17d429/FLAG02fcaa843 [2020-09-24 18:01:57,243 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:01:57,244 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-24 18:01:57,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/687175bc4/4d7f9f27bf484c0fbf10740dae17d429/FLAG02fcaa843 [2020-09-24 18:01:57,485 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/687175bc4/4d7f9f27bf484c0fbf10740dae17d429 [2020-09-24 18:01:57,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:01:57,504 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:01:57,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:01:57,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:01:57,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:01:57,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:01:57" (1/1) ... [2020-09-24 18:01:57,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e33fb78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:57, skipping insertion in model container [2020-09-24 18:01:57,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:01:57" (1/1) ... [2020-09-24 18:01:57,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:01:57,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:01:57,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:01:58,017 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:01:58,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:01:58,242 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:01:58,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58 WrapperNode [2020-09-24 18:01:58,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:01:58,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:01:58,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:01:58,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:01:58,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (1/1) ... [2020-09-24 18:01:58,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:01:58,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:01:58,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:01:58,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:01:58,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (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 [2020-09-24 18:01:58,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:01:58,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:01:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:01:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:01:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:01:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:01:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:01:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:01:58,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:01:58,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:01:58,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:01:58,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:01:58,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:01:58,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:01:58,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:01:58,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:01:58,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:01:58,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:01:58,441 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:01:58,441 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:01:58,441 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:01:58,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:01:58,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:01:58,442 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 18:01:58,442 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:01:58,442 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:01:58,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:01:58,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:01:58,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:01:58,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:01:58,443 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:01:58,443 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:01:58,443 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:01:58,443 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:01:58,444 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:01:58,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:01:58,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:01:58,444 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:01:58,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:01:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:01:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:01:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:01:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:01:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:01:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:01:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:01:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:01:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:01:58,445 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:01:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:01:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:01:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:01:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:01:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:01:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:01:58,446 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:01:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:01:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:01:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:01:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:01:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:01:58,447 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:01:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:01:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:01:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:01:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:01:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:01:58,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:01:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:01:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:01:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:01:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:01:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:01:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:01:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:01:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:01:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:01:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:01:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:01:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:01:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:01:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:01:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:01:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:01:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:01:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:01:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:01:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 18:01:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:01:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:01:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:01:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:01:59,617 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:01:59,617 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:01:59,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:01:59 BoogieIcfgContainer [2020-09-24 18:01:59,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:01:59,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:01:59,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:01:59,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:01:59,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:01:57" (1/3) ... [2020-09-24 18:01:59,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a0e940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:01:59, skipping insertion in model container [2020-09-24 18:01:59,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:58" (2/3) ... [2020-09-24 18:01:59,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a0e940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:01:59, skipping insertion in model container [2020-09-24 18:01:59,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:01:59" (3/3) ... [2020-09-24 18:01:59,636 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-09-24 18:01:59,648 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:01:59,660 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:01:59,683 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:01:59,714 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:01:59,715 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:01:59,715 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:01:59,715 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:01:59,715 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:01:59,715 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:01:59,715 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:01:59,715 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:01:59,740 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-24 18:01:59,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 18:01:59,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:59,760 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] [2020-09-24 18:01:59,761 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:59,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:59,769 INFO L82 PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times [2020-09-24 18:01:59,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:59,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685069741] [2020-09-24 18:01:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:00,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:00,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:02,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 18:02:05,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:02:05,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-24 18:02:05,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:02:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:02:05,587 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:05,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:05,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 18:02:05,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:05,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:05,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:05,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:05,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:05,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:05,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:05,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:02:05,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:05,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:05,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:05,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:02:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:05,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:05,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:05,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:02:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:05,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:05,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:02:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:05,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:05,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:05,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:05,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:05,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:05,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:05,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:05,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:05,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:05,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:05,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685069741] [2020-09-24 18:02:05,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:05,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:02:05,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403516920] [2020-09-24 18:02:05,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:02:05,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:05,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:02:05,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:02:05,912 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2020-09-24 18:02:07,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:07,300 INFO L93 Difference]: Finished difference Result 497 states and 588 transitions. [2020-09-24 18:02:07,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:02:07,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 18:02:07,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:07,347 INFO L225 Difference]: With dead ends: 497 [2020-09-24 18:02:07,347 INFO L226 Difference]: Without dead ends: 307 [2020-09-24 18:02:07,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:02:07,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-24 18:02:07,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264. [2020-09-24 18:02:07,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-24 18:02:07,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-09-24 18:02:07,493 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 153 [2020-09-24 18:02:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:07,494 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-09-24 18:02:07,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:02:07,495 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-09-24 18:02:07,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 18:02:07,500 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:07,501 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] [2020-09-24 18:02:07,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:02:07,501 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:07,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:07,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1698755128, now seen corresponding path program 1 times [2020-09-24 18:02:07,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:07,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356664430] [2020-09-24 18:02:07,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:07,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:07,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:12,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:12,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:02:12,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:02:12,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 18:02:12,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:12,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:12,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:02:12,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:02:12,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:12,855 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:12,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:12,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:12,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:12,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:12,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:12,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 18:02:12,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:12,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:12,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:12,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:12,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:13,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:13,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:13,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:13,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:13,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:13,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:13,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:13,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:13,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:13,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:13,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:13,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:02:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:13,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:13,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:13,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 18:02:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:13,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:13,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:13,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 18:02:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:13,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:13,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:13,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:13,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:13,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:13,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:13,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:13,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:13,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:13,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:13,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356664430] [2020-09-24 18:02:13,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:13,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:02:13,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186244234] [2020-09-24 18:02:13,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:02:13,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:13,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:02:13,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:02:13,110 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 4 states. [2020-09-24 18:02:13,750 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:02:14,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:14,753 INFO L93 Difference]: Finished difference Result 405 states and 453 transitions. [2020-09-24 18:02:14,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:02:14,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 18:02:14,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:14,761 INFO L225 Difference]: With dead ends: 405 [2020-09-24 18:02:14,761 INFO L226 Difference]: Without dead ends: 290 [2020-09-24 18:02:14,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:02:14,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-24 18:02:14,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 254. [2020-09-24 18:02:14,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-24 18:02:14,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 273 transitions. [2020-09-24 18:02:14,821 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 273 transitions. Word has length 154 [2020-09-24 18:02:14,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:14,822 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 273 transitions. [2020-09-24 18:02:14,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:02:14,822 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 273 transitions. [2020-09-24 18:02:14,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 18:02:14,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:14,826 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] [2020-09-24 18:02:14,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:02:14,827 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:14,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:14,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1272338923, now seen corresponding path program 1 times [2020-09-24 18:02:14,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:14,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339219033] [2020-09-24 18:02:14,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:14,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:15,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:19,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:19,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 18:02:19,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:02:19,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4158 [2020-09-24 18:02:19,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:19,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 18:02:19,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 18:02:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 18:02:19,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:19,357 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:19,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:19,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:19,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:19,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:19,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:19,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-24 18:02:19,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:19,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 18:02:19,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:19,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:19,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:19,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:19,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:19,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:19,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:19,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:19,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:19,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:19,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:19,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:19,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:19,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:19,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:19,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:19,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:19,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:19,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:19,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:19,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:19,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:19,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:02:19,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:19,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:19,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:19,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:19,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:19,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:19,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:19,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:19,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:19,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:19,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:19,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:19,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:19,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:19,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:19,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:02:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:19,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:19,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:19,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:19,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:19,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:19,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:19,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:19,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:19,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:19,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:19,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:02:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:19,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:19,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:19,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:19,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:19,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:19,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:19,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:19,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:19,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:02:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:19,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:19,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:19,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:19,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:19,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:19,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:19,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:19,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:19,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:19,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:19,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:19,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339219033] [2020-09-24 18:02:19,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:19,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:02:19,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314131513] [2020-09-24 18:02:19,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:02:19,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:19,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:02:19,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:02:19,666 INFO L87 Difference]: Start difference. First operand 254 states and 273 transitions. Second operand 4 states. [2020-09-24 18:02:20,212 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:21,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:21,944 INFO L93 Difference]: Finished difference Result 590 states and 668 transitions. [2020-09-24 18:02:21,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:02:21,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 18:02:21,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:21,952 INFO L225 Difference]: With dead ends: 590 [2020-09-24 18:02:21,952 INFO L226 Difference]: Without dead ends: 446 [2020-09-24 18:02:21,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:02:21,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-09-24 18:02:22,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 386. [2020-09-24 18:02:22,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-24 18:02:22,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 423 transitions. [2020-09-24 18:02:22,049 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 423 transitions. Word has length 163 [2020-09-24 18:02:22,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:22,051 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 423 transitions. [2020-09-24 18:02:22,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:02:22,051 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 423 transitions. [2020-09-24 18:02:22,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 18:02:22,063 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:22,064 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] [2020-09-24 18:02:22,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:02:22,064 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:22,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:22,065 INFO L82 PathProgramCache]: Analyzing trace with hash 834967554, now seen corresponding path program 1 times [2020-09-24 18:02:22,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:22,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884313376] [2020-09-24 18:02:22,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:22,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:22,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:23,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:24,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:27,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 18:02:27,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:02:27,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-24 18:02:27,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:02:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:02:27,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:27,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:27,516 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:27,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:27,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:27,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:27,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:27,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 18:02:27,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:27,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:27,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:27,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:27,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:27,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:27,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:27,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:27,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:27,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:27,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:27,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:27,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:27,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:27,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:27,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:27,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:27,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:27,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:27,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:27,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:27,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:27,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:27,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:27,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:27,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:27,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:27,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:27,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:27,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:27,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:27,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:27,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 18:02:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:27,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:27,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:02:27,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:27,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:02:27,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:27,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:02:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:02:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:02:27,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:27,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:02:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:27,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:27,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:27,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:27,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:02:27,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:27,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:27,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:27,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:27,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:27,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 18:02:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:27,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:27,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:27,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:27,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:27,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:27,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:27,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:27,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 18:02:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:27,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:27,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:27,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:27,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:27,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:27,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:27,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:27,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:27,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:27,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 18:02:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:27,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:27,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:27,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:27,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:27,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:27,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:27,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:27,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:27,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884313376] [2020-09-24 18:02:27,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:27,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:02:27,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383419259] [2020-09-24 18:02:27,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:02:27,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:27,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:02:27,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:02:27,906 INFO L87 Difference]: Start difference. First operand 386 states and 423 transitions. Second operand 6 states. [2020-09-24 18:02:28,626 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:02:30,412 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:02:31,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:31,114 INFO L93 Difference]: Finished difference Result 998 states and 1153 transitions. [2020-09-24 18:02:31,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:02:31,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-09-24 18:02:31,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:31,121 INFO L225 Difference]: With dead ends: 998 [2020-09-24 18:02:31,121 INFO L226 Difference]: Without dead ends: 722 [2020-09-24 18:02:31,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:02:31,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2020-09-24 18:02:31,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 629. [2020-09-24 18:02:31,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-09-24 18:02:31,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 692 transitions. [2020-09-24 18:02:31,209 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 692 transitions. Word has length 171 [2020-09-24 18:02:31,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:31,209 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 692 transitions. [2020-09-24 18:02:31,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:02:31,210 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 692 transitions. [2020-09-24 18:02:31,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 18:02:31,213 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:31,213 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] [2020-09-24 18:02:31,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:02:31,214 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:31,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:31,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1418606569, now seen corresponding path program 1 times [2020-09-24 18:02:31,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:31,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466093305] [2020-09-24 18:02:31,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:31,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:32,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:32,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 18:02:32,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:32,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1646 [2020-09-24 18:02:32,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:02:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 18:02:32,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 18:02:32,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:33,286 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:33,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:33,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-24 18:02:33,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:33,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 18:02:33,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:33,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:33,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:33,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:33,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:33,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:33,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:33,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:33,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:33,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:33,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:02:33,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:33,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:33,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:33,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:33,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:33,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:33,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:33,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:33,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:02:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:02:33,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:02:33,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:02:33,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:33,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 18:02:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:33,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:33,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:33,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 18:02:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:33,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 18:02:33,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:02:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:33,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:33,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 18:02:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:33,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:33,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:33,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:33,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466093305] [2020-09-24 18:02:33,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:33,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:02:33,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687950266] [2020-09-24 18:02:33,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:02:33,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:33,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:02:33,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:02:33,837 INFO L87 Difference]: Start difference. First operand 629 states and 692 transitions. Second operand 10 states. [2020-09-24 18:02:34,498 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:35,965 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:36,573 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 18:02:36,967 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:02:37,349 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:37,670 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:02:37,990 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:02:38,266 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:02:38,769 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:40,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:40,132 INFO L93 Difference]: Finished difference Result 1696 states and 1989 transitions. [2020-09-24 18:02:40,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 18:02:40,133 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-24 18:02:40,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:40,141 INFO L225 Difference]: With dead ends: 1696 [2020-09-24 18:02:40,141 INFO L226 Difference]: Without dead ends: 1177 [2020-09-24 18:02:40,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 18:02:40,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2020-09-24 18:02:40,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1087. [2020-09-24 18:02:40,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2020-09-24 18:02:40,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1225 transitions. [2020-09-24 18:02:40,282 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1225 transitions. Word has length 172 [2020-09-24 18:02:40,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:40,282 INFO L479 AbstractCegarLoop]: Abstraction has 1087 states and 1225 transitions. [2020-09-24 18:02:40,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:02:40,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1225 transitions. [2020-09-24 18:02:40,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 18:02:40,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:40,286 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] [2020-09-24 18:02:40,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:02:40,287 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:40,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:40,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times [2020-09-24 18:02:40,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:40,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941355443] [2020-09-24 18:02:40,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:02:40,348 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:02:40,348 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:02:40,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:02:40,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:02:40 BoogieIcfgContainer [2020-09-24 18:02:40,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:02:40,390 INFO L168 Benchmark]: Toolchain (without parser) took 42889.91 ms. Allocated memory was 138.9 MB in the beginning and 694.7 MB in the end (delta: 555.7 MB). Free memory was 101.4 MB in the beginning and 474.7 MB in the end (delta: -373.3 MB). Peak memory consumption was 182.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:40,391 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-24 18:02:40,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.28 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.6 MB in the beginning and 171.2 MB in the end (delta: -70.6 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:40,392 INFO L168 Benchmark]: Boogie Preprocessor took 116.94 ms. Allocated memory is still 201.3 MB. Free memory was 171.2 MB in the beginning and 167.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:40,393 INFO L168 Benchmark]: RCFGBuilder took 1264.26 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 167.1 MB in the beginning and 177.3 MB in the end (delta: -10.2 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:40,394 INFO L168 Benchmark]: TraceAbstraction took 40760.29 ms. Allocated memory was 233.3 MB in the beginning and 694.7 MB in the end (delta: 461.4 MB). Free memory was 175.5 MB in the beginning and 474.7 MB in the end (delta: -299.2 MB). Peak memory consumption was 162.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:40,398 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 738.28 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.6 MB in the beginning and 171.2 MB in the end (delta: -70.6 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.94 ms. Allocated memory is still 201.3 MB. Free memory was 171.2 MB in the beginning and 167.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1264.26 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 167.1 MB in the beginning and 177.3 MB in the end (delta: -10.2 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40760.29 ms. Allocated memory was 233.3 MB in the beginning and 694.7 MB in the end (delta: 461.4 MB). Free memory was 175.5 MB in the beginning and 474.7 MB in the end (delta: -299.2 MB). Peak memory consumption was 162.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) [L804] CALL waterRise() [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 [L804] RET waterRise() [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L770] COND FALSE !(\read(pumpRunning)) [L777] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND FALSE !(\read(systemActive)) [L619] CALL __utac_acc__Specification3_spec__1() [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L163] CALL, EXPR isMethaneLevelCritical() [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); [L163] RET, EXPR isMethaneLevelCritical() [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L169] CALL, EXPR getWaterLevel() [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); [L169] RET, EXPR getWaterLevel() [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 [L173] CALL, EXPR isPumpRunning() [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); [L173] RET, EXPR isPumpRunning() [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) [L179] CALL __automaton_fail() [L148] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1263 SDtfs, 1820 SDslu, 1072 SDs, 0 SdLazy, 2697 SolverSat, 599 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1087occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 322 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 24.1s InterpolantComputationTime, 990 NumberOfCodeBlocks, 990 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 808 ConstructedInterpolants, 0 QuantifiedInterpolants, 332137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...