/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:16:03,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:16:03,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:16:03,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:16:03,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:16:03,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:16:03,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:16:03,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:16:03,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:16:03,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:16:03,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:16:03,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:16:03,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:16:03,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:16:03,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:16:03,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:16:03,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:16:03,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:16:03,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:16:03,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:16:03,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:16:03,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:16:03,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:16:03,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:16:03,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:16:03,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:16:03,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:16:03,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:16:03,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:16:03,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:16:03,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:16:03,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:16:03,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:16:03,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:16:03,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:16:03,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:16:03,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:16:03,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:16:03,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:16:03,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:16:03,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:16:03,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:16:04,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:16:04,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:16:04,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:16:04,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:16:04,012 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:16:04,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:16:04,013 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:16:04,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:16:04,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:16:04,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:16:04,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:16:04,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:16:04,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:16:04,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:16:04,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:16:04,018 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:16:04,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:16:04,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:16:04,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:16:04,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:16:04,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:16:04,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:16:04,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:16:04,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:16:04,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:16:04,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:16:04,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:16:04,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:16:04,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:16:04,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:16:04,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:16:04,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:16:04,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:16:04,539 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:16:04,541 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:16:04,542 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-25 05:16:04,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db010720a/9e2bdb642b334f4fa5d394c4924124e5/FLAG3ecc15757 [2020-09-25 05:16:05,267 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:16:05,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-25 05:16:05,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db010720a/9e2bdb642b334f4fa5d394c4924124e5/FLAG3ecc15757 [2020-09-25 05:16:05,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db010720a/9e2bdb642b334f4fa5d394c4924124e5 [2020-09-25 05:16:05,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:16:05,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:16:05,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:16:05,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:16:05,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:16:05,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:16:05" (1/1) ... [2020-09-25 05:16:05,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:05, skipping insertion in model container [2020-09-25 05:16:05,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:16:05" (1/1) ... [2020-09-25 05:16:05,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:16:05,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:16:06,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:16:06,039 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:16:06,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:16:06,287 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:16:06,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:06 WrapperNode [2020-09-25 05:16:06,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:16:06,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:16:06,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:16:06,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:16:06,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:06" (1/1) ... [2020-09-25 05:16:06,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:06" (1/1) ... [2020-09-25 05:16:06,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:06" (1/1) ... [2020-09-25 05:16:06,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:06" (1/1) ... [2020-09-25 05:16:06,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:06" (1/1) ... [2020-09-25 05:16:06,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:06" (1/1) ... [2020-09-25 05:16:06,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:06" (1/1) ... [2020-09-25 05:16:06,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:16:06,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:16:06,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:16:06,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:16:06,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:16:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:16:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:16:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:16:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:16:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:16:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:16:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:16:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:16:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:16:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:16:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:16:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:16:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:16:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:16:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 05:16:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:16:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:16:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:16:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:16:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:16:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:16:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:16:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:16:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:16:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:16:06,529 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:16:06,529 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:16:06,530 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:16:06,530 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:16:06,530 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:16:06,530 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 05:16:06,530 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:16:06,530 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:16:06,530 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:16:06,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:16:06,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:16:06,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:16:06,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:16:06,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 05:16:06,531 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:16:06,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:16:06,532 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:16:06,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:16:06,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:16:06,532 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:16:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:16:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:16:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:16:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:16:06,535 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:16:06,535 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:16:06,535 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:16:06,535 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:16:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:16:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:16:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:16:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 05:16:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:16:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:16:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:16:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:16:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:16:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:16:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:16:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:16:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:16:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:16:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:16:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:16:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:16:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:16:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:16:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:16:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:16:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:16:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:16:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:16:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:16:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:16:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:16:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:16:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:16:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:16:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:16:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:16:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:16:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:16:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:16:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:16:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:16:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:16:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:16:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 05:16:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 05:16:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:16:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:16:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:16:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:16:07,812 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:16:07,812 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:16:07,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:16:07 BoogieIcfgContainer [2020-09-25 05:16:07,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:16:07,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:16:07,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:16:07,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:16:07,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:16:05" (1/3) ... [2020-09-25 05:16:07,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2376dbcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:16:07, skipping insertion in model container [2020-09-25 05:16:07,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:16:06" (2/3) ... [2020-09-25 05:16:07,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2376dbcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:16:07, skipping insertion in model container [2020-09-25 05:16:07,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:16:07" (3/3) ... [2020-09-25 05:16:07,837 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-09-25 05:16:07,849 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:16:07,863 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:16:07,886 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:16:07,925 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:16:07,925 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:16:07,926 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:16:07,926 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:16:07,926 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:16:07,926 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:16:07,926 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:16:07,926 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:16:07,958 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states. [2020-09-25 05:16:07,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 05:16:07,979 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:07,980 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 05:16:07,981 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:07,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:07,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1599034145, now seen corresponding path program 1 times [2020-09-25 05:16:08,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:08,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198063425] [2020-09-25 05:16:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:08,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:08,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:10,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:13,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:13,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 05:16:13,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:16:13,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 05:16:13,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:13,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:13,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:16:13,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:13,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 05:16:13,932 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:13,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:13,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:14,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:14,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:14,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:14,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 05:16:14,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:14,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:14,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:14,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:14,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:14,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:14,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:14,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:14,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:14,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:14,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:14,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:14,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:14,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:14,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:14,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:14,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:14,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:14,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:14,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:14,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:14,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:14,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:14,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:14,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:14,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:14,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:14,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:14,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:14,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:14,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:14,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:14,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:16:14,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:14,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:14,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:14,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:14,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:14,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:14,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:14,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:14,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:14,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:14,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:14,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:14,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:14,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:14,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:14,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:14,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:16:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:14,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:14,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:14,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:14,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:14,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:14,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:14,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:14,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:14,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:16:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:14,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:14,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:14,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:14,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:14,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:14,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:14,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:14,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:14,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:14,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 05:16:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:14,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:14,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:14,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:14,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:14,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:14,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:14,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:14,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:14,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:14,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:14,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:14,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:16:14,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198063425] [2020-09-25 05:16:14,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:14,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:16:14,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374250650] [2020-09-25 05:16:14,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:16:14,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:14,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:16:14,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:16:14,277 INFO L87 Difference]: Start difference. First operand 349 states. Second operand 3 states. [2020-09-25 05:16:16,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:16:16,046 INFO L93 Difference]: Finished difference Result 567 states and 676 transitions. [2020-09-25 05:16:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:16:16,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 05:16:16,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:16:16,070 INFO L225 Difference]: With dead ends: 567 [2020-09-25 05:16:16,070 INFO L226 Difference]: Without dead ends: 343 [2020-09-25 05:16:16,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:16:16,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-25 05:16:16,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 298. [2020-09-25 05:16:16,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-25 05:16:16,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 328 transitions. [2020-09-25 05:16:16,206 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 328 transitions. Word has length 153 [2020-09-25 05:16:16,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:16:16,210 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 328 transitions. [2020-09-25 05:16:16,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:16:16,210 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 328 transitions. [2020-09-25 05:16:16,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 05:16:16,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:16,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:16:16,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:16:16,218 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:16,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:16,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1907459970, now seen corresponding path program 1 times [2020-09-25 05:16:16,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:16,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635099396] [2020-09-25 05:16:16,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:16,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:16,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:18,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:21,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:21,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:16:21,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:16:21,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 05:16:21,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:21,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:21,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:21,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:16:21,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:16:21,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:21,765 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:21,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:21,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:21,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:21,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:21,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:21,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 05:16:21,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:21,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:21,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:21,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:21,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:21,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:21,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:21,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:21,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:21,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:21,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:16:21,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:21,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:21,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:21,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:21,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:21,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:21,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:21,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:21,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:21,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:21,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:21,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:21,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:21,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:21,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:21,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:21,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:21,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:21,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:21,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:16:21,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:21,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:21,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:21,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:21,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:21,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:21,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:21,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:21,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:21,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:21,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:21,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:21,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:21,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:21,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 05:16:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:21,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:21,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:21,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:21,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:21,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:21,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:21,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:21,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:21,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:21,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:21,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:21,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:16:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:21,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:21,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:21,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:21,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:21,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:16:21,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:21,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:21,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:21,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:21,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 05:16:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:21,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:21,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:21,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:21,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:21,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:21,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:21,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:21,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:21,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:21,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:21,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:22,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:16:22,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635099396] [2020-09-25 05:16:22,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:22,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:16:22,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324481517] [2020-09-25 05:16:22,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:16:22,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:22,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:16:22,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:16:22,016 INFO L87 Difference]: Start difference. First operand 298 states and 328 transitions. Second operand 4 states. [2020-09-25 05:16:22,651 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:16:23,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:16:23,965 INFO L93 Difference]: Finished difference Result 478 states and 543 transitions. [2020-09-25 05:16:23,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:16:23,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 05:16:23,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:16:23,971 INFO L225 Difference]: With dead ends: 478 [2020-09-25 05:16:23,971 INFO L226 Difference]: Without dead ends: 326 [2020-09-25 05:16:23,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:16:23,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-09-25 05:16:24,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 288. [2020-09-25 05:16:24,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-09-25 05:16:24,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 315 transitions. [2020-09-25 05:16:24,034 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 315 transitions. Word has length 154 [2020-09-25 05:16:24,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:16:24,035 INFO L479 AbstractCegarLoop]: Abstraction has 288 states and 315 transitions. [2020-09-25 05:16:24,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:16:24,035 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 315 transitions. [2020-09-25 05:16:24,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 05:16:24,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:24,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:16:24,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:16:24,038 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:24,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:24,039 INFO L82 PathProgramCache]: Analyzing trace with hash -383907644, now seen corresponding path program 1 times [2020-09-25 05:16:24,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:24,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656541412] [2020-09-25 05:16:24,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:24,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:24,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:28,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:28,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 05:16:28,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:16:28,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4535 [2020-09-25 05:16:28,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:28,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:28,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:16:28,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 05:16:28,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 05:16:28,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:28,956 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:28,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:29,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 05:16:29,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:29,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:29,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:16:29,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:29,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:29,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:29,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:29,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:29,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:29,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:29,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:29,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:29,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:29,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:16:29,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:29,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:29,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:29,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:29,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:29,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:29,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:16:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:29,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:29,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:29,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:29,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:29,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 05:16:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:29,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:29,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:29,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:29,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:29,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 05:16:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:29,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:29,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:29,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:29,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:29,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:29,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:29,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:29,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:29,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:29,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:29,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:16:29,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656541412] [2020-09-25 05:16:29,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:29,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:16:29,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472880349] [2020-09-25 05:16:29,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:16:29,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:29,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:16:29,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:16:29,375 INFO L87 Difference]: Start difference. First operand 288 states and 315 transitions. Second operand 5 states. [2020-09-25 05:16:29,849 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:16:30,565 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:16:32,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:16:32,952 INFO L93 Difference]: Finished difference Result 790 states and 914 transitions. [2020-09-25 05:16:32,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:16:32,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2020-09-25 05:16:32,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:16:32,962 INFO L225 Difference]: With dead ends: 790 [2020-09-25 05:16:32,963 INFO L226 Difference]: Without dead ends: 612 [2020-09-25 05:16:32,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:16:32,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-09-25 05:16:33,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 541. [2020-09-25 05:16:33,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-09-25 05:16:33,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 610 transitions. [2020-09-25 05:16:33,085 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 610 transitions. Word has length 163 [2020-09-25 05:16:33,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:16:33,086 INFO L479 AbstractCegarLoop]: Abstraction has 541 states and 610 transitions. [2020-09-25 05:16:33,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:16:33,086 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 610 transitions. [2020-09-25 05:16:33,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 05:16:33,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:33,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:16:33,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:16:33,090 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:33,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:33,091 INFO L82 PathProgramCache]: Analyzing trace with hash 621095136, now seen corresponding path program 1 times [2020-09-25 05:16:33,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:33,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475417104] [2020-09-25 05:16:33,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:33,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:34,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:34,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 05:16:34,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:34,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1782 [2020-09-25 05:16:34,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:34,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 05:16:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 05:16:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 05:16:34,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,352 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:35,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:35,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 05:16:35,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:35,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 05:16:35,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:35,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:35,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:35,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:35,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:35,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:35,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:35,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:35,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:35,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:16:35,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:35,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:35,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:35,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:16:35,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 05:16:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:16:35,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:35,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:16:35,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 05:16:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:35,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:35,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:16:35,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:35,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 05:16:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:35,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:16:35,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:16:35,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:35,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:35,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 05:16:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:35,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:35,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:35,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:35,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:35,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:35,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:35,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:35,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:35,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:16:35,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475417104] [2020-09-25 05:16:35,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:35,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:16:35,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585934141] [2020-09-25 05:16:35,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:16:35,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:35,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:16:35,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:16:35,882 INFO L87 Difference]: Start difference. First operand 541 states and 610 transitions. Second operand 10 states. [2020-09-25 05:16:36,369 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:16:38,879 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:16:39,245 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:16:39,650 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:16:40,033 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:16:40,358 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:16:40,675 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:16:40,992 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:16:41,523 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:16:42,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:16:42,780 INFO L93 Difference]: Finished difference Result 1509 states and 1874 transitions. [2020-09-25 05:16:42,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:16:42,781 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 05:16:42,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:16:42,789 INFO L225 Difference]: With dead ends: 1509 [2020-09-25 05:16:42,789 INFO L226 Difference]: Without dead ends: 1078 [2020-09-25 05:16:42,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:16:42,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2020-09-25 05:16:42,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 938. [2020-09-25 05:16:42,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2020-09-25 05:16:42,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1092 transitions. [2020-09-25 05:16:42,931 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1092 transitions. Word has length 172 [2020-09-25 05:16:42,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:16:42,932 INFO L479 AbstractCegarLoop]: Abstraction has 938 states and 1092 transitions. [2020-09-25 05:16:42,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:16:42,932 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1092 transitions. [2020-09-25 05:16:42,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 05:16:42,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:16:42,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:16:42,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:16:42,938 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:16:42,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:16:42,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1515693883, now seen corresponding path program 1 times [2020-09-25 05:16:42,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:16:42,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67519747] [2020-09-25 05:16:42,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:16:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:16:43,005 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:16:43,005 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:16:43,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:16:43,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:16:43 BoogieIcfgContainer [2020-09-25 05:16:43,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:16:43,042 INFO L168 Benchmark]: Toolchain (without parser) took 37532.33 ms. Allocated memory was 146.3 MB in the beginning and 666.4 MB in the end (delta: 520.1 MB). Free memory was 101.9 MB in the beginning and 182.7 MB in the end (delta: -80.8 MB). Peak memory consumption was 439.3 MB. Max. memory is 7.1 GB. [2020-09-25 05:16:43,043 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:16:43,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.17 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.2 MB in the beginning and 172.3 MB in the end (delta: -71.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:16:43,045 INFO L168 Benchmark]: Boogie Preprocessor took 112.28 ms. Allocated memory is still 203.4 MB. Free memory was 172.3 MB in the beginning and 168.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:16:43,045 INFO L168 Benchmark]: RCFGBuilder took 1422.48 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 168.1 MB in the beginning and 174.5 MB in the end (delta: -6.4 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-09-25 05:16:43,046 INFO L168 Benchmark]: TraceAbstraction took 35213.26 ms. Allocated memory was 236.5 MB in the beginning and 666.4 MB in the end (delta: 429.9 MB). Free memory was 173.0 MB in the beginning and 182.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 420.3 MB. Max. memory is 7.1 GB. [2020-09-25 05:16:43,050 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.17 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.2 MB in the beginning and 172.3 MB in the end (delta: -71.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.28 ms. Allocated memory is still 203.4 MB. Free memory was 172.3 MB in the beginning and 168.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1422.48 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 168.1 MB in the beginning and 174.5 MB in the end (delta: -6.4 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35213.26 ms. Allocated memory was 236.5 MB in the beginning and 666.4 MB in the end (delta: 429.9 MB). Free memory was 173.0 MB in the beginning and 182.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 420.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 193]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; [L640] int retValue_acc ; [L641] int tmp ; [L645] FCALL select_helpers() [L646] FCALL select_features() [L647] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L647] RET, EXPR valid_product() [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) [L651] FCALL setup() [L652] CALL runTest() [L634] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L984] tmp___1 = __VERIFIER_nondet_int() [L986] COND TRUE \read(tmp___1) [L988] CALL stopSystem() [L894] COND FALSE !(\read(pumpRunning)) [L901] systemActive = 0 [L988] RET stopSystem() [L995] CALL timeShift() [L675] COND FALSE !(\read(pumpRunning)) [L682] COND FALSE !(\read(systemActive)) [L690] CALL __utac_acc__Specification3_spec__1() [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L913] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L919] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L923] CALL, EXPR isPumpRunning() [L808] int retValue_acc ; [L811] retValue_acc = pumpRunning [L812] return (retValue_acc); [L923] RET, EXPR isPumpRunning() [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) [L929] CALL __automaton_fail() [L193] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 661 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 35.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1147 SDtfs, 1749 SDslu, 977 SDs, 0 SdLazy, 2782 SolverSat, 604 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=938occurred in iteration=4, 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, 4 MinimizatonAttempts, 294 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 270169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...