/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:11:31,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:11:31,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:11:31,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:11:31,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:11:31,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:11:31,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:11:31,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:11:31,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:11:31,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:11:31,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:11:31,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:11:31,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:11:31,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:11:31,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:11:31,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:11:31,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:11:31,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:11:31,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:11:31,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:11:31,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:11:31,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:11:31,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:11:31,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:11:31,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:11:31,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:11:31,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:11:31,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:11:31,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:11:31,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:11:31,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:11:31,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:11:31,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:11:31,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:11:31,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:11:31,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:11:31,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:11:31,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:11:31,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:11:31,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:11:31,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:11:31,489 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 13:11:31,522 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:11:31,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:11:31,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:11:31,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:11:31,524 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:11:31,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:11:31,525 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:11:31,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:11:31,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:11:31,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:11:31,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:11:31,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:11:31,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:11:31,526 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:11:31,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:11:31,526 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:11:31,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:11:31,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:11:31,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:11:31,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:11:31,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:11:31,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:11:31,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:11:31,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:11:31,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:11:31,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:11:31,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:11:31,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:11:31,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:11:31,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:11:32,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:11:32,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:11:32,057 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:11:32,059 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:11:32,059 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:11:32,060 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-09-25 13:11:32,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2be75a71f/43d660251151454294df32b509ef7f46/FLAG6e189926a [2020-09-25 13:11:32,689 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:11:32,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-09-25 13:11:32,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2be75a71f/43d660251151454294df32b509ef7f46/FLAG6e189926a [2020-09-25 13:11:32,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2be75a71f/43d660251151454294df32b509ef7f46 [2020-09-25 13:11:32,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:11:32,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:11:32,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:11:32,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:11:33,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:11:33,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:32" (1/1) ... [2020-09-25 13:11:33,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33, skipping insertion in model container [2020-09-25 13:11:33,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:32" (1/1) ... [2020-09-25 13:11:33,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:11:33,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:11:33,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:33,492 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:11:33,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:11:33,732 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:11:33,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33 WrapperNode [2020-09-25 13:11:33,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:11:33,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:11:33,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:11:33,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:11:33,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 13:11:33,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 13:11:33,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 13:11:33,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 13:11:33,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 13:11:33,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 13:11:33,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 13:11:33,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:11:33,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:11:33,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:11:33,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:11:33,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (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 13:11:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:11:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:11:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:11:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:11:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:11:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:11:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:11:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:11:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:11:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:11:33,965 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:11:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:11:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:11:33,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:11:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:33,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:33,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:11:33,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:11:33,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:11:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:11:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:11:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:11:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:11:33,970 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:11:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:11:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:11:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:11:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:11:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:11:33,972 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:11:33,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:11:33,972 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:11:33,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:11:33,972 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:11:33,973 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:11:33,973 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:11:33,973 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:11:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:11:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:11:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:11:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:11:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:11:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:11:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:11:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:11:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:11:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:11:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:11:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:11:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:11:33,979 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:11:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:11:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:11:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:11:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:11:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:11:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:11:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:11:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:11:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:11:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:11:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:11:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:11:33,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:11:33,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:11:33,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:11:33,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:11:33,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:11:33,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:11:33,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:11:33,985 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:11:33,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:11:33,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:11:33,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:11:33,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:11:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:11:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:11:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:11:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:11:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:11:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:11:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:11:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:11:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:11:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:11:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:11:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:11:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:11:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:11:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:11:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:11:35,208 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:11:35,209 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:11:35,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:35 BoogieIcfgContainer [2020-09-25 13:11:35,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:11:35,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:11:35,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:11:35,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:11:35,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:11:32" (1/3) ... [2020-09-25 13:11:35,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22620ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:35, skipping insertion in model container [2020-09-25 13:11:35,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (2/3) ... [2020-09-25 13:11:35,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22620ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:35, skipping insertion in model container [2020-09-25 13:11:35,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:35" (3/3) ... [2020-09-25 13:11:35,227 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2020-09-25 13:11:35,240 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:11:35,251 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:11:35,274 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:11:35,306 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:11:35,306 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:11:35,306 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:11:35,307 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:11:35,307 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:11:35,307 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:11:35,307 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:11:35,307 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:11:35,334 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states. [2020-09-25 13:11:35,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 13:11:35,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:35,355 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 13:11:35,355 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:35,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:35,363 INFO L82 PathProgramCache]: Analyzing trace with hash -2091214271, now seen corresponding path program 1 times [2020-09-25 13:11:35,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:35,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276942241] [2020-09-25 13:11:35,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:35,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:36,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:37,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:40,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:40,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:11:40,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:11:40,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-09-25 13:11:40,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:40,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:40,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:11:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:11:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:11:40,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 13:11:41,315 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:41,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:41,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:41,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:41,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:41,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:41,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 13:11:41,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:41,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:11:41,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:41,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:41,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:41,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:41,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:41,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:41,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:11:41,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:41,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:41,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:41,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:41,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:41,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:41,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:41,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:41,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:41,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:11:41,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:41,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:41,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:41,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:41,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:41,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:41,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:41,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:41,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:41,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:41,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:41,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:11:41,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:41,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:41,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:41,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:41,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:41,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:41,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:41,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:41,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:41,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:41,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:41,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:11:41,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:41,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:41,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:41,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:11:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:41,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:41,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:41,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:41,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:41,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:41,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:41,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:41,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:41,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 13:11:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:41,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:41,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:41,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:41,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:41,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:41,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:41,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:41,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:41,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:41,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:41,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:41,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 13:11:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:41,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:41,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:41,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:41,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:41,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:41,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:41,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:41,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:41,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:41,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:41,958 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 13:11:41,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276942241] [2020-09-25 13:11:41,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:41,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:11:41,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069396152] [2020-09-25 13:11:41,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:11:41,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:41,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:11:41,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:11:42,000 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 5 states. [2020-09-25 13:11:42,693 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:43,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:43,943 INFO L93 Difference]: Finished difference Result 486 states and 580 transitions. [2020-09-25 13:11:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:11:43,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-09-25 13:11:43,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:43,967 INFO L225 Difference]: With dead ends: 486 [2020-09-25 13:11:43,967 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 13:11:43,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:11:44,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 13:11:44,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-25 13:11:44,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 13:11:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 281 transitions. [2020-09-25 13:11:44,113 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 281 transitions. Word has length 153 [2020-09-25 13:11:44,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:44,122 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 281 transitions. [2020-09-25 13:11:44,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:11:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 281 transitions. [2020-09-25 13:11:44,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 13:11:44,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:44,134 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] [2020-09-25 13:11:44,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:11:44,135 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:44,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:44,135 INFO L82 PathProgramCache]: Analyzing trace with hash 827883786, now seen corresponding path program 1 times [2020-09-25 13:11:44,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:44,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055520570] [2020-09-25 13:11:44,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:44,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:44,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:47,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:47,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 13:11:47,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:11:47,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3283 [2020-09-25 13:11:47,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:47,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:11:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 13:11:47,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-25 13:11:47,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:47,864 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:11:47,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:11:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:47,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:11:48,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 13:11:48,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:11:48,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:11:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:48,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:48,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:48,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:11:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:48,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:11:48,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:48,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:11:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:48,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:11:48,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:48,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:11:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:48,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:48,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:11:48,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:11:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:11:48,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:11:48,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:11:48,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:11:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:11:48,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:48,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:48,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:11:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:11:48,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:48,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:48,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:48,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:11:48,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:11:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:48,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:11:48,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:11:48,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:48,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 13:11:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:48,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:11:48,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:11:48,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:11:48,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:11:48,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 13:11:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:11:48,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:11:48,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:11:48,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:11:48,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:11:48,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:11:48,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:11:48,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:11:48,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:11:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:11:48,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:11:48,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:11:48,421 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 13:11:48,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055520570] [2020-09-25 13:11:48,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:11:48,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:11:48,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419626099] [2020-09-25 13:11:48,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:11:48,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:11:48,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:11:48,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:11:48,427 INFO L87 Difference]: Start difference. First operand 259 states and 281 transitions. Second operand 9 states. [2020-09-25 13:11:48,917 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:51,318 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:51,682 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:52,032 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:52,355 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:11:52,645 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:53,127 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:11:53,438 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:11:54,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:11:54,395 INFO L93 Difference]: Finished difference Result 664 states and 829 transitions. [2020-09-25 13:11:54,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 13:11:54,396 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-09-25 13:11:54,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:11:54,404 INFO L225 Difference]: With dead ends: 664 [2020-09-25 13:11:54,404 INFO L226 Difference]: Without dead ends: 491 [2020-09-25 13:11:54,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:11:54,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-09-25 13:11:54,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 395. [2020-09-25 13:11:54,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-09-25 13:11:54,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 441 transitions. [2020-09-25 13:11:54,488 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 441 transitions. Word has length 167 [2020-09-25 13:11:54,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:11:54,488 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 441 transitions. [2020-09-25 13:11:54,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:11:54,489 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 441 transitions. [2020-09-25 13:11:54,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 13:11:54,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:11:54,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:11:54,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:11:54,493 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:11:54,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:11:54,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1994642045, now seen corresponding path program 1 times [2020-09-25 13:11:54,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:11:54,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137431725] [2020-09-25 13:11:54,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:11:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:11:54,566 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:11:54,567 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:11:54,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:11:54,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:54 BoogieIcfgContainer [2020-09-25 13:11:54,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:11:54,602 INFO L168 Benchmark]: Toolchain (without parser) took 21615.02 ms. Allocated memory was 140.0 MB in the beginning and 498.6 MB in the end (delta: 358.6 MB). Free memory was 102.6 MB in the beginning and 263.8 MB in the end (delta: -161.2 MB). Peak memory consumption was 197.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:54,602 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:11:54,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.89 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 173.6 MB in the end (delta: -71.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:54,604 INFO L168 Benchmark]: Boogie Preprocessor took 119.96 ms. Allocated memory is still 204.5 MB. Free memory was 173.6 MB in the beginning and 169.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:54,605 INFO L168 Benchmark]: RCFGBuilder took 1361.80 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 169.5 MB in the beginning and 177.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:54,606 INFO L168 Benchmark]: TraceAbstraction took 19381.69 ms. Allocated memory was 237.5 MB in the beginning and 498.6 MB in the end (delta: 261.1 MB). Free memory was 177.6 MB in the beginning and 263.8 MB in the end (delta: -86.3 MB). Peak memory consumption was 174.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:11:54,610 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 738.89 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 173.6 MB in the end (delta: -71.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.96 ms. Allocated memory is still 204.5 MB. Free memory was 173.6 MB in the beginning and 169.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1361.80 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 169.5 MB in the beginning and 177.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19381.69 ms. Allocated memory was 237.5 MB in the beginning and 498.6 MB in the end (delta: 261.1 MB). Free memory was 177.6 MB in the beginning and 263.8 MB in the end (delta: -86.3 MB). Peak memory consumption was 174.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 883]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L136] int cleanupTimeShifts = 4; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L675] int pumpRunning = 0; [L676] int systemActive = 1; [L215] int retValue_acc ; [L216] int tmp ; [L220] FCALL select_helpers() [L221] FCALL select_features() [L222] CALL, EXPR valid_product() [L914] int retValue_acc ; [L917] retValue_acc = 1 [L918] return (retValue_acc); [L222] RET, EXPR valid_product() [L222] tmp = valid_product() [L224] COND TRUE \read(tmp) [L226] FCALL setup() [L227] CALL runTest() [L206] CALL test() [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 [L615] COND TRUE 1 [L617] COND TRUE splverifierCounter < 4 [L623] tmp = __VERIFIER_nondet_int() [L625] COND TRUE \read(tmp) [L627] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L627] RET waterRise() [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND TRUE \read(tmp___2) [L647] CALL startSystem() [L874] systemActive = 1 [L647] RET startSystem() [L660] CALL timeShift() [L683] COND FALSE !(\read(pumpRunning)) [L690] COND TRUE \read(systemActive) [L692] CALL processEnvironment() [L738] int tmp ; [L741] COND FALSE !(\read(pumpRunning)) [L756] CALL processEnvironment__wrappee__methaneQuery() [L712] int tmp ; [L715] COND FALSE !(\read(pumpRunning)) [L730] FCALL processEnvironment__wrappee__base() [L756] RET processEnvironment__wrappee__methaneQuery() [L692] RET processEnvironment() [L698] CALL __utac_acc__Specification3_spec__1() [L924] int tmp ; [L925] int tmp___0 ; [L926] int tmp___1 ; [L930] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L930] RET, EXPR isMethaneLevelCritical() [L930] tmp = isMethaneLevelCritical() [L932] COND FALSE !(\read(tmp)) [L936] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L936] RET, EXPR getWaterLevel() [L936] tmp___0 = getWaterLevel() [L938] COND TRUE tmp___0 == 2 [L940] CALL, EXPR isPumpRunning() [L807] int retValue_acc ; [L810] retValue_acc = pumpRunning [L811] return (retValue_acc); [L940] RET, EXPR isPumpRunning() [L940] tmp___1 = isPumpRunning() [L942] COND FALSE !(\read(tmp___1)) [L946] CALL __automaton_fail() [L883] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 634 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 502 SDtfs, 897 SDslu, 755 SDs, 0 SdLazy, 1612 SolverSat, 312 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=395occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 138 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 505 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 139094 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...