/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:03:19,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:03:19,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:03:19,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:03:19,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:03:19,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:03:19,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:03:19,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:03:19,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:03:19,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:03:19,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:03:19,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:03:19,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:03:19,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:03:19,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:03:19,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:03:19,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:03:19,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:03:19,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:03:19,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:03:19,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:03:19,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:03:19,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:03:19,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:03:19,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:03:19,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:03:19,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:03:19,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:03:19,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:03:19,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:03:19,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:03:19,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:03:19,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:03:19,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:03:19,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:03:19,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:03:19,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:03:19,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:03:19,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:03:19,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:03:19,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:03:19,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:03:19,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:03:19,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:03:19,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:03:19,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:03:19,956 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:03:19,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:03:19,957 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:03:19,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:03:19,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:03:19,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:03:19,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:03:19,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:03:19,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:03:19,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:03:19,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:03:19,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:03:19,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:03:19,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:03:19,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:03:19,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:03:19,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:03:19,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:03:19,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:03:19,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:03:19,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:03:19,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:03:19,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:03:19,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:03:19,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:03:19,962 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:03:20,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:03:20,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:03:20,462 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:03:20,464 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:03:20,465 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:03:20,466 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-09-25 12:03:20,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/735c4d5fa/ca8d008c34174567b4c67e35a4f5e8dd/FLAG817016b5b [2020-09-25 12:03:21,165 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:03:21,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-09-25 12:03:21,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/735c4d5fa/ca8d008c34174567b4c67e35a4f5e8dd/FLAG817016b5b [2020-09-25 12:03:21,462 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/735c4d5fa/ca8d008c34174567b4c67e35a4f5e8dd [2020-09-25 12:03:21,475 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:03:21,481 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:03:21,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:03:21,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:03:21,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:03:21,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:03:21" (1/1) ... [2020-09-25 12:03:21,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d3ce57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:21, skipping insertion in model container [2020-09-25 12:03:21,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:03:21" (1/1) ... [2020-09-25 12:03:21,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:03:21,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:03:21,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:03:21,980 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:03:22,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:03:22,221 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:03:22,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:22 WrapperNode [2020-09-25 12:03:22,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:03:22,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:03:22,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:03:22,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:03:22,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:22" (1/1) ... [2020-09-25 12:03:22,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:22" (1/1) ... [2020-09-25 12:03:22,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:22" (1/1) ... [2020-09-25 12:03:22,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:22" (1/1) ... [2020-09-25 12:03:22,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:22" (1/1) ... [2020-09-25 12:03:22,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:22" (1/1) ... [2020-09-25 12:03:22,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:22" (1/1) ... [2020-09-25 12:03:22,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:03:22,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:03:22,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:03:22,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:03:22,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:03:22,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:03:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:03:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:03:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:03:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:03:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:03:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:03:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:03:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:03:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:03:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:03:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:03:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:03:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:03:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:03:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:03:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:03:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:03:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:03:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:03:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:03:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 12:03:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:03:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:03:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:03:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:03:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:03:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:03:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:03:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:03:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:03:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:03:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:03:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:03:22,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:03:22,444 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:03:22,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:03:22,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:03:22,444 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:03:22,444 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 12:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:03:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:03:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:03:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:03:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:03:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:03:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:03:22,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:03:22,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:03:22,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:03:22,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:03:22,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:03:22,449 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:03:22,449 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:03:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:03:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:03:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:03:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:03:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 12:03:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:03:22,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:03:22,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:03:22,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:03:23,676 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:03:23,676 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:03:23,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:03:23 BoogieIcfgContainer [2020-09-25 12:03:23,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:03:23,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:03:23,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:03:23,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:03:23,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:03:21" (1/3) ... [2020-09-25 12:03:23,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a64e28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:03:23, skipping insertion in model container [2020-09-25 12:03:23,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:03:22" (2/3) ... [2020-09-25 12:03:23,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a64e28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:03:23, skipping insertion in model container [2020-09-25 12:03:23,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:03:23" (3/3) ... [2020-09-25 12:03:23,700 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-09-25 12:03:23,712 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:03:23,725 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:03:23,749 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:03:23,795 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:03:23,796 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:03:23,796 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:03:23,796 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:03:23,797 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:03:23,797 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:03:23,797 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:03:23,797 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:03:23,840 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2020-09-25 12:03:23,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 12:03:23,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:03:23,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:03:23,872 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:03:23,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:03:23,880 INFO L82 PathProgramCache]: Analyzing trace with hash 348388081, now seen corresponding path program 1 times [2020-09-25 12:03:23,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:03:23,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247741905] [2020-09-25 12:03:23,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:03:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:24,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:24,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:26,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:29,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:29,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 12:03:29,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:03:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 12:03:29,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:29,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:29,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:03:29,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:03:29,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 12:03:29,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 12:03:29,839 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:03:29,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:03:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:29,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:30,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:30,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:03:30,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:30,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-25 12:03:30,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:30,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:30,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:30,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:30,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:03:30,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 12:03:30,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:03:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:30,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:30,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:30,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:30,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:30,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:03:30,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:30,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:30,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:30,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:30,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:30,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:30,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:03:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:30,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:30,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:30,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:30,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:30,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:03:30,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:30,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:30,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:30,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:30,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:30,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:03:30,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:03:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:30,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:30,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:30,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:30,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:30,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 12:03:30,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:30,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:30,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:30,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:30,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:03:30,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:03:30,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:03:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:30,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:30,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:30,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:30,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:30,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:03:30,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:30,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:30,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:30,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:30,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:30,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:03:30,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 12:03:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:30,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:30,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:30,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:30,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:30,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:03:30,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:30,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:03:30,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:03:30,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 12:03:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:30,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:30,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:30,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:30,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:30,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:03:30,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:30,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:30,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:03:30,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:30,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:03:30,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:03:30,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 12:03:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:30,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:30,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:30,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:30,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:30,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:03:30,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:30,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:30,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:03:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:03:30,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:03:30,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:03:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:03:30,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247741905] [2020-09-25 12:03:30,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:03:30,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:03:30,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790479707] [2020-09-25 12:03:30,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:03:30,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:03:30,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:03:30,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:03:30,692 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 8 states. [2020-09-25 12:03:31,448 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:03:32,884 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:03:33,207 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:03:33,575 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:03:33,939 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:03:34,298 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:03:34,586 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:03:34,878 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:03:35,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:03:35,776 INFO L93 Difference]: Finished difference Result 483 states and 591 transitions. [2020-09-25 12:03:35,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:03:35,779 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 12:03:35,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:03:35,802 INFO L225 Difference]: With dead ends: 483 [2020-09-25 12:03:35,803 INFO L226 Difference]: Without dead ends: 335 [2020-09-25 12:03:35,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:03:35,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-25 12:03:35,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 300. [2020-09-25 12:03:35,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-09-25 12:03:35,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 337 transitions. [2020-09-25 12:03:35,938 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 337 transitions. Word has length 153 [2020-09-25 12:03:35,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:03:35,940 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 337 transitions. [2020-09-25 12:03:35,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:03:35,940 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 337 transitions. [2020-09-25 12:03:35,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 12:03:35,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:03:35,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:03:35,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:03:35,951 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:03:35,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:03:35,953 INFO L82 PathProgramCache]: Analyzing trace with hash -212549043, now seen corresponding path program 1 times [2020-09-25 12:03:35,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:03:35,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574841006] [2020-09-25 12:03:35,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:03:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:36,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:37,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:37,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 12:03:37,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:37,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1181 [2020-09-25 12:03:37,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:37,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:03:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 12:03:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 12:03:37,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:37,567 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:03:37,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:03:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:37,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:37,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:37,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:03:37,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:37,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 12:03:37,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:37,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:37,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:37,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:37,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:03:37,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:37,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:03:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:37,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:37,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:37,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:37,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:37,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:03:37,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:37,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:37,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:37,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:37,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:37,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:37,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:03:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:37,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:37,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:37,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:37,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:37,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:03:37,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:37,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:37,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:03:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:37,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:37,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:37,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:37,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:37,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:03:37,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:37,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:03:37,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:37,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:03:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:37,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:37,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:37,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:37,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:37,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:03:37,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:37,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:37,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:37,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 12:03:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:37,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:37,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:37,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:03:37,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:37,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:03:37,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:37,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:37,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:37,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:37,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:03:37,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:37,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 12:03:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:37,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:37,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:37,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:37,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:37,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:03:37,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:37,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:37,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:03:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:03:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:03:37,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:37,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 12:03:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:37,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:37,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:37,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:37,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:37,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:03:37,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:37,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:37,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:03:37,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:03:37,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:03:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:03:38,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 12:03:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:38,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:38,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:38,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:38,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:03:38,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:38,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:03:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:03:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:03:38,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:38,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:03:38,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574841006] [2020-09-25 12:03:38,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:03:38,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:03:38,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886355941] [2020-09-25 12:03:38,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:03:38,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:03:38,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:03:38,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:03:38,055 INFO L87 Difference]: Start difference. First operand 300 states and 337 transitions. Second operand 6 states. [2020-09-25 12:03:38,604 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:03:39,435 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:03:41,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:03:41,414 INFO L93 Difference]: Finished difference Result 902 states and 1113 transitions. [2020-09-25 12:03:41,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 12:03:41,415 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-25 12:03:41,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:03:41,429 INFO L225 Difference]: With dead ends: 902 [2020-09-25 12:03:41,429 INFO L226 Difference]: Without dead ends: 712 [2020-09-25 12:03:41,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:03:41,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2020-09-25 12:03:41,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 631. [2020-09-25 12:03:41,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2020-09-25 12:03:41,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 745 transitions. [2020-09-25 12:03:41,549 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 745 transitions. Word has length 168 [2020-09-25 12:03:41,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:03:41,550 INFO L479 AbstractCegarLoop]: Abstraction has 631 states and 745 transitions. [2020-09-25 12:03:41,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:03:41,550 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 745 transitions. [2020-09-25 12:03:41,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 12:03:41,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:03:41,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:03:41,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:03:41,557 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:03:41,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:03:41,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1089668054, now seen corresponding path program 1 times [2020-09-25 12:03:41,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:03:41,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129675275] [2020-09-25 12:03:41,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:03:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:41,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:41,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:43,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:43,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:46,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:46,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 12:03:46,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:03:46,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 12:03:46,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:46,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 12:03:46,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:03:46,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 12:03:46,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:46,967 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:03:46,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:03:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:47,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:47,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:47,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:03:47,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:47,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 12:03:47,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:47,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:03:47,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:47,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:03:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:47,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:47,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:47,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:47,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:47,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:03:47,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:47,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:47,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:47,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:47,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:47,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:47,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:03:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:47,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:47,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:47,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:47,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:47,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:03:47,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:47,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:47,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:47,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:47,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:03:47,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:03:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:47,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:47,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:47,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:47,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:47,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:03:47,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:47,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:47,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:47,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:47,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:03:47,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:47,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:03:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:47,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:47,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:47,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:47,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:47,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:03:47,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:47,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:47,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:47,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 12:03:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:47,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:47,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:47,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:03:47,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:47,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:03:47,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:47,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:47,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:03:47,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:03:47,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:03:47,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:03:47,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 12:03:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:47,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:47,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:47,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:03:47,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:47,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:03:47,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:47,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:03:47,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:47,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:03:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:47,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:47,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:47,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:47,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:47,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:03:47,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:47,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:03:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:47,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:03:47,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:47,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 12:03:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:47,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:47,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:47,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:47,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:47,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:03:47,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:47,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:47,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:03:47,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:03:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:03:47,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:03:47,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 12:03:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:03:47,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:03:47,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:03:47,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:03:47,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:03:47,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:03:47,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:03:47,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:03:47,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:03:47,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:03:47,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:03:47,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:03:47,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:03:47,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129675275] [2020-09-25 12:03:47,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:03:47,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 12:03:47,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972613315] [2020-09-25 12:03:47,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 12:03:47,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:03:47,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 12:03:47,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:03:47,532 INFO L87 Difference]: Start difference. First operand 631 states and 745 transitions. Second operand 12 states. [2020-09-25 12:03:48,088 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:03:49,038 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:03:49,932 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 12:03:50,542 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:03:50,905 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:03:51,325 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:03:51,671 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:03:51,968 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:03:52,293 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:03:52,573 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:03:52,960 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:03:53,332 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:03:53,675 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:03:54,029 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:03:54,389 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:03:55,101 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-25 12:03:55,796 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2020-09-25 12:03:56,490 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 12:03:56,796 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:03:57,493 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 196 [2020-09-25 12:03:58,054 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-09-25 12:03:58,720 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 12:04:00,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:04:00,174 INFO L93 Difference]: Finished difference Result 1493 states and 1952 transitions. [2020-09-25 12:04:00,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-25 12:04:00,174 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 162 [2020-09-25 12:04:00,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:04:00,189 INFO L225 Difference]: With dead ends: 1493 [2020-09-25 12:04:00,189 INFO L226 Difference]: Without dead ends: 1194 [2020-09-25 12:04:00,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 12:04:00,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-09-25 12:04:00,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1026. [2020-09-25 12:04:00,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1026 states. [2020-09-25 12:04:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1253 transitions. [2020-09-25 12:04:00,390 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1253 transitions. Word has length 162 [2020-09-25 12:04:00,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:04:00,390 INFO L479 AbstractCegarLoop]: Abstraction has 1026 states and 1253 transitions. [2020-09-25 12:04:00,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 12:04:00,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1253 transitions. [2020-09-25 12:04:00,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 12:04:00,397 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:04:00,397 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] [2020-09-25 12:04:00,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:04:00,398 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:04:00,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:04:00,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1656398860, now seen corresponding path program 1 times [2020-09-25 12:04:00,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:04:00,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999267853] [2020-09-25 12:04:00,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:04:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 12:04:00,464 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 12:04:00,464 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 12:04:00,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:04:00,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:04:00 BoogieIcfgContainer [2020-09-25 12:04:00,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:04:00,499 INFO L168 Benchmark]: Toolchain (without parser) took 39022.08 ms. Allocated memory was 141.0 MB in the beginning and 665.3 MB in the end (delta: 524.3 MB). Free memory was 102.6 MB in the beginning and 194.0 MB in the end (delta: -91.4 MB). Peak memory consumption was 432.9 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:00,500 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 12:04:00,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.15 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 175.8 MB in the end (delta: -73.9 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:00,502 INFO L168 Benchmark]: Boogie Preprocessor took 103.94 ms. Allocated memory is still 205.0 MB. Free memory was 175.8 MB in the beginning and 171.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:00,503 INFO L168 Benchmark]: RCFGBuilder took 1362.12 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 171.8 MB in the beginning and 179.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:00,504 INFO L168 Benchmark]: TraceAbstraction took 36805.89 ms. Allocated memory was 234.9 MB in the beginning and 665.3 MB in the end (delta: 430.4 MB). Free memory was 179.4 MB in the beginning and 194.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 415.8 MB. Max. memory is 7.1 GB. [2020-09-25 12:04:00,507 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 741.15 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 175.8 MB in the end (delta: -73.9 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.94 ms. Allocated memory is still 205.0 MB. Free memory was 175.8 MB in the beginning and 171.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1362.12 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 171.8 MB in the beginning and 179.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36805.89 ms. Allocated memory was 234.9 MB in the beginning and 665.3 MB in the end (delta: 430.4 MB). Free memory was 179.4 MB in the beginning and 194.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 415.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L78] int cleanupTimeShifts = 4; [L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L804] int waterLevel = 1; [L805] int methaneLevelCritical = 0; [L159] int retValue_acc ; [L160] int tmp ; [L164] FCALL select_helpers() [L165] FCALL select_features() [L166] CALL, EXPR valid_product() [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); [L166] RET, EXPR valid_product() [L166] tmp = valid_product() [L168] COND TRUE \read(tmp) [L170] FCALL setup() [L171] CALL runTest() [L150] CALL test() [L729] int splverifierCounter ; [L730] int tmp ; [L731] int tmp___0 ; [L732] int tmp___1 ; [L733] int tmp___2 ; [L736] splverifierCounter = 0 [L738] COND TRUE 1 [L740] COND TRUE splverifierCounter < 4 [L746] tmp = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp) [L750] CALL waterRise() [L822] COND TRUE waterLevel < 2 [L823] waterLevel = waterLevel + 1 [L750] RET waterRise() [L756] tmp___0 = __VERIFIER_nondet_int() [L758] COND FALSE !(\read(tmp___0)) [L766] tmp___2 = __VERIFIER_nondet_int() [L768] COND TRUE \read(tmp___2) [L783] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L604] FCALL processEnvironment() [L610] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L843] int retValue_acc ; [L846] retValue_acc = methaneLevelCritical [L847] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L875] int retValue_acc ; [L878] retValue_acc = waterLevel [L879] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L668] int retValue_acc ; [L671] retValue_acc = pumpRunning [L672] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L799] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 593 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 36.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 21.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 690 SDtfs, 1357 SDslu, 1944 SDs, 0 SdLazy, 3421 SolverSat, 463 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1026occurred in iteration=3, 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, 3 MinimizatonAttempts, 284 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 654 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 480 ConstructedInterpolants, 0 QuantifiedInterpolants, 220674 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...