/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:01:33,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:01:33,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:01:33,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:01:33,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:01:33,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:01:33,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:01:33,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:01:33,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:01:33,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:01:33,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:01:33,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:01:33,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:01:33,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:01:33,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:01:33,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:01:33,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:01:33,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:01:33,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:01:33,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:01:33,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:01:33,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:01:33,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:01:33,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:01:33,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:01:33,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:01:33,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:01:33,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:01:33,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:01:33,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:01:33,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:01:33,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:01:33,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:01:33,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:01:33,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:01:33,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:01:33,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:01:33,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:01:33,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:01:33,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:01:33,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:01:33,535 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:01:33,578 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:01:33,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:01:33,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:01:33,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:01:33,581 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:01:33,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:01:33,582 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:01:33,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:01:33,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:01:33,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:01:33,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:01:33,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:01:33,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:01:33,585 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:01:33,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:01:33,585 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:01:33,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:01:33,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:01:33,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:01:33,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:01:33,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:01:33,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:01:33,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:01:33,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:01:33,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:01:33,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:01:33,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:01:33,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:01:33,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:01:33,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:01:34,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:01:34,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:01:34,049 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:01:34,051 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:01:34,051 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:01:34,052 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-09-24 18:01:34,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9aea29eac/a198ef08ee944aa191a41874a6b8fc28/FLAGf8c7a30f5 [2020-09-24 18:01:34,789 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:01:34,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-09-24 18:01:34,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9aea29eac/a198ef08ee944aa191a41874a6b8fc28/FLAGf8c7a30f5 [2020-09-24 18:01:35,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9aea29eac/a198ef08ee944aa191a41874a6b8fc28 [2020-09-24 18:01:35,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:01:35,042 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:01:35,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:01:35,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:01:35,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:01:35,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:01:35" (1/1) ... [2020-09-24 18:01:35,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1392f113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:35, skipping insertion in model container [2020-09-24 18:01:35,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:01:35" (1/1) ... [2020-09-24 18:01:35,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:01:35,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:01:35,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:01:35,620 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:01:35,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:01:35,748 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:01:35,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:35 WrapperNode [2020-09-24 18:01:35,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:01:35,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:01:35,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:01:35,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:01:35,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:35" (1/1) ... [2020-09-24 18:01:35,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:35" (1/1) ... [2020-09-24 18:01:35,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:35" (1/1) ... [2020-09-24 18:01:35,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:35" (1/1) ... [2020-09-24 18:01:35,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:35" (1/1) ... [2020-09-24 18:01:35,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:35" (1/1) ... [2020-09-24 18:01:35,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:35" (1/1) ... [2020-09-24 18:01:35,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:01:35,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:01:35,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:01:35,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:01:35,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:01:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:01:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:01:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:01:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:01:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:01:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:01:35,967 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:01:35,968 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:01:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:01:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:01:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:01:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:01:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:01:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:01:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:01:35,971 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:01:35,971 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:01:35,971 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:01:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:01:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:01:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:01:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:01:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:01:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:01:35,974 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:01:35,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:01:35,975 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:01:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:01:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:01:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:01:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:01:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:01:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:01:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:01:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:01:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:01:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:01:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:01:35,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:01:35,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:01:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:01:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:01:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:01:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:01:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:01:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:01:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:01:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:01:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:01:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:01:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:01:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:01:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:01:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:01:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:01:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:01:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:01:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:01:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:01:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:01:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:01:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:01:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:01:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:01:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:01:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:01:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:01:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:01:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:01:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:01:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:01:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:01:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:01:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:01:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:01:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:01:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:01:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:01:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:01:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:01:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:01:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:01:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:01:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:01:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:01:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:01:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:01:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:01:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:01:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:01:37,236 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:01:37,236 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:01:37,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:01:37 BoogieIcfgContainer [2020-09-24 18:01:37,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:01:37,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:01:37,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:01:37,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:01:37,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:01:35" (1/3) ... [2020-09-24 18:01:37,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbe6555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:01:37, skipping insertion in model container [2020-09-24 18:01:37,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:01:35" (2/3) ... [2020-09-24 18:01:37,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbe6555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:01:37, skipping insertion in model container [2020-09-24 18:01:37,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:01:37" (3/3) ... [2020-09-24 18:01:37,255 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-09-24 18:01:37,267 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:01:37,279 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:01:37,302 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:01:37,335 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:01:37,335 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:01:37,335 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:01:37,336 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:01:37,336 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:01:37,336 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:01:37,336 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:01:37,336 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:01:37,364 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-24 18:01:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 18:01:37,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:37,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:37,386 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:37,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:37,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2007669194, now seen corresponding path program 1 times [2020-09-24 18:01:37,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:37,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957431920] [2020-09-24 18:01:37,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:37,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:38,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:39,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:42,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:42,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 18:01:42,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:01:42,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 18:01:42,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:42,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:42,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:01:42,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:42,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:01:43,225 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:43,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:43,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:43,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:43,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:43,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:43,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 18:01:43,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:43,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:43,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:43,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:43,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:43,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:43,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:43,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:43,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:43,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:43,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:43,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:43,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:43,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:43,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:43,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:43,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:43,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:43,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:43,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:43,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:43,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:43,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:43,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:43,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:43,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:43,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:01:43,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:43,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:43,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:43,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:43,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:43,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:43,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:43,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:43,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:43,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:43,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:43,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:43,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:01:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:43,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:43,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:43,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:43,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:43,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:43,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:43,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:43,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:01:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:43,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:43,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:43,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:43,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:43,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:43,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:43,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:43,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:01:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:43,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:43,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:43,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:43,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:43,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:43,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:43,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:43,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:43,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:43,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:01:43,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957431920] [2020-09-24 18:01:43,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:43,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:01:43,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324724520] [2020-09-24 18:01:43,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:01:43,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:43,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:01:43,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:01:43,604 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 3 states. [2020-09-24 18:01:44,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:44,933 INFO L93 Difference]: Finished difference Result 461 states and 548 transitions. [2020-09-24 18:01:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:01:44,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 18:01:44,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:44,956 INFO L225 Difference]: With dead ends: 461 [2020-09-24 18:01:44,956 INFO L226 Difference]: Without dead ends: 288 [2020-09-24 18:01:44,964 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 [2020-09-24 18:01:44,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-24 18:01:45,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 247. [2020-09-24 18:01:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-24 18:01:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 267 transitions. [2020-09-24 18:01:45,110 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 267 transitions. Word has length 153 [2020-09-24 18:01:45,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:45,112 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 267 transitions. [2020-09-24 18:01:45,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:01:45,113 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 267 transitions. [2020-09-24 18:01:45,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 18:01:45,118 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:45,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:45,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:01:45,119 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:45,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:45,120 INFO L82 PathProgramCache]: Analyzing trace with hash -986006503, now seen corresponding path program 1 times [2020-09-24 18:01:45,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:45,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720391716] [2020-09-24 18:01:45,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:45,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:45,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:47,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:50,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:50,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:01:50,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:01:50,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 18:01:50,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:50,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:50,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:01:50,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:01:50,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:50,464 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:50,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:50,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:50,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:50,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:50,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:50,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 18:01:50,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:50,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:50,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:50,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:50,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:50,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:50,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:50,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:50,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:50,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:50,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:50,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:50,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:50,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:50,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:50,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:50,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:50,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:50,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:50,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:50,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:50,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:50,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:50,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:50,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:50,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:50,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:01:50,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:50,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:50,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:50,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:50,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:50,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:50,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:50,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:50,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:50,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:50,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:01:50,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:50,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:50,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:50,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:50,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:01:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:50,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:50,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:50,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:50,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:50,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:50,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:50,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:50,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:50,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 18:01:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:50,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:50,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:50,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:50,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:50,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:50,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:50,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:50,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:50,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:50,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:50,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 18:01:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:50,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:50,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:50,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:50,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:50,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:50,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:50,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:50,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:50,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:50,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:01:50,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720391716] [2020-09-24 18:01:50,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:50,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:01:50,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25785173] [2020-09-24 18:01:50,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:01:50,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:50,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:01:50,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:01:50,719 INFO L87 Difference]: Start difference. First operand 247 states and 267 transitions. Second operand 4 states. [2020-09-24 18:01:51,387 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:01:52,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:52,304 INFO L93 Difference]: Finished difference Result 369 states and 413 transitions. [2020-09-24 18:01:52,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:01:52,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 18:01:52,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:52,309 INFO L225 Difference]: With dead ends: 369 [2020-09-24 18:01:52,310 INFO L226 Difference]: Without dead ends: 271 [2020-09-24 18:01:52,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:01:52,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-24 18:01:52,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 237. [2020-09-24 18:01:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-24 18:01:52,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 254 transitions. [2020-09-24 18:01:52,354 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 254 transitions. Word has length 154 [2020-09-24 18:01:52,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:52,355 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 254 transitions. [2020-09-24 18:01:52,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:01:52,355 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 254 transitions. [2020-09-24 18:01:52,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 18:01:52,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:52,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:52,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:01:52,359 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:52,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:52,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1560512259, now seen corresponding path program 1 times [2020-09-24 18:01:52,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:52,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060174456] [2020-09-24 18:01:52,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:52,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:53,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:55,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:55,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 18:01:55,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:01:55,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3353 [2020-09-24 18:01:55,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:55,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 18:01:55,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 18:01:55,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 18:01:55,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:56,131 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:56,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:56,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:56,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:56,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:56,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:56,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-24 18:01:56,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 18:01:56,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:56,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:56,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:56,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:56,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:56,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:56,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:56,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:56,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:56,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:56,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:56,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:56,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:56,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:56,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:56,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:56,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:56,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:56,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:56,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:56,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:56,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:56,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:56,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:56,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:01:56,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:56,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:56,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:56,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:56,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:56,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:56,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:56,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:56,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:56,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:56,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:56,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:56,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:56,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:01:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:56,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:56,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:56,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:56,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:56,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:56,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:56,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:56,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:56,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:01:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:56,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:56,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:56,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:56,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:56,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:56,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:56,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:56,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:56,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:56,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:56,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:01:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:56,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:56,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:56,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:56,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:56,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:56,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:56,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:56,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:56,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:56,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:56,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:01:56,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060174456] [2020-09-24 18:01:56,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:56,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:01:56,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994225454] [2020-09-24 18:01:56,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:01:56,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:56,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:01:56,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:01:56,535 INFO L87 Difference]: Start difference. First operand 237 states and 254 transitions. Second operand 4 states. [2020-09-24 18:01:57,047 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:01:58,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:58,601 INFO L93 Difference]: Finished difference Result 535 states and 607 transitions. [2020-09-24 18:01:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:01:58,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 18:01:58,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:58,606 INFO L225 Difference]: With dead ends: 535 [2020-09-24 18:01:58,606 INFO L226 Difference]: Without dead ends: 408 [2020-09-24 18:01:58,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:01:58,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-09-24 18:01:58,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 352. [2020-09-24 18:01:58,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-09-24 18:01:58,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 385 transitions. [2020-09-24 18:01:58,685 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 385 transitions. Word has length 163 [2020-09-24 18:01:58,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:58,686 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 385 transitions. [2020-09-24 18:01:58,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:01:58,686 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 385 transitions. [2020-09-24 18:01:58,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 18:01:58,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:58,691 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:58,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:01:58,692 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:58,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:58,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1484282150, now seen corresponding path program 1 times [2020-09-24 18:01:58,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:58,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390666391] [2020-09-24 18:01:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:58,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:58,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:00,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:01,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:03,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:03,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 18:02:03,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:02:03,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-24 18:02:03,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:03,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:02:03,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:02:03,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:03,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:04,080 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:04,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:04,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:04,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:04,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:04,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:04,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 18:02:04,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:04,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:04,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:04,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:04,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:04,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:04,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:04,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:04,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:04,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:04,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:04,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:04,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:04,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:04,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:04,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:04,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:04,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:04,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:04,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:04,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:04,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:04,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:04,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:04,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:04,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:04,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:04,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:04,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:04,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:04,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:04,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:04,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:04,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:04,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:04,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:04,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:04,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:04,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:04,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:04,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:04,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:04,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 18:02:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:04,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:04,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:04,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:02:04,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:04,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:02:04,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:02:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:02:04,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:02:04,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:04,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:02:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:04,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:04,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:04,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:04,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:04,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:04,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:04,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:04,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:04,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:04,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:04,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 18:02:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:04,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:04,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:04,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:04,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:04,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:04,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:04,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:04,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:04,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 18:02:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:04,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:04,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:04,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:04,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:04,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:04,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:04,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:04,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:04,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 18:02:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:04,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:04,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:04,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:04,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:04,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:04,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:04,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:04,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:04,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390666391] [2020-09-24 18:02:04,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:04,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:02:04,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773286633] [2020-09-24 18:02:04,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:02:04,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:04,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:02:04,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:02:04,390 INFO L87 Difference]: Start difference. First operand 352 states and 385 transitions. Second operand 6 states. [2020-09-24 18:02:04,876 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:02:06,644 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:02:07,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:07,260 INFO L93 Difference]: Finished difference Result 926 states and 1073 transitions. [2020-09-24 18:02:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:02:07,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-09-24 18:02:07,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:07,266 INFO L225 Difference]: With dead ends: 926 [2020-09-24 18:02:07,266 INFO L226 Difference]: Without dead ends: 684 [2020-09-24 18:02:07,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:02:07,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2020-09-24 18:02:07,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 591. [2020-09-24 18:02:07,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-09-24 18:02:07,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 650 transitions. [2020-09-24 18:02:07,347 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 650 transitions. Word has length 171 [2020-09-24 18:02:07,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:07,347 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 650 transitions. [2020-09-24 18:02:07,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:02:07,348 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 650 transitions. [2020-09-24 18:02:07,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 18:02:07,350 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:07,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:07,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:02:07,351 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:07,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:07,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1122738503, now seen corresponding path program 1 times [2020-09-24 18:02:07,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:07,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571047591] [2020-09-24 18:02:07,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:07,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:09,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 18:02:09,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:09,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1691 [2020-09-24 18:02:09,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:02:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 18:02:09,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 18:02:09,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:09,466 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:09,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:09,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:09,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:09,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:09,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-24 18:02:09,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 18:02:09,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:09,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:09,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:09,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:09,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:09,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:09,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:09,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:09,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:09,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:09,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:09,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:09,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:09,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:09,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:09,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:09,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:09,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:09,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:09,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:09,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:09,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:09,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:02:09,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:09,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:09,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:09,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:09,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:09,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:09,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:09,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:09,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:09,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:09,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:09,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:09,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:02:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:09,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:09,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:02:09,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:09,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:09,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:02:09,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:09,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 18:02:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:09,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:09,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:09,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:09,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:09,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:09,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:09,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 18:02:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:09,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:09,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:09,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:09,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 18:02:09,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:09,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:02:09,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:09,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:09,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:09,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 18:02:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:09,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:09,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:09,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:09,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:09,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:09,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:09,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:09,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:09,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:09,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:09,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:02:09,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571047591] [2020-09-24 18:02:09,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:09,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:02:09,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155117379] [2020-09-24 18:02:09,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:02:09,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:09,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:02:09,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:02:09,925 INFO L87 Difference]: Start difference. First operand 591 states and 650 transitions. Second operand 9 states. [2020-09-24 18:02:10,587 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:12,048 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:12,652 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 18:02:13,055 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:13,438 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:13,750 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:02:14,090 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:02:14,385 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:15,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:15,436 INFO L93 Difference]: Finished difference Result 1496 states and 1738 transitions. [2020-09-24 18:02:15,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:02:15,436 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 18:02:15,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:15,447 INFO L225 Difference]: With dead ends: 1496 [2020-09-24 18:02:15,447 INFO L226 Difference]: Without dead ends: 1015 [2020-09-24 18:02:15,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 18:02:15,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-09-24 18:02:15,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 935. [2020-09-24 18:02:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 935 states. [2020-09-24 18:02:15,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1044 transitions. [2020-09-24 18:02:15,594 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1044 transitions. Word has length 172 [2020-09-24 18:02:15,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:15,595 INFO L479 AbstractCegarLoop]: Abstraction has 935 states and 1044 transitions. [2020-09-24 18:02:15,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:02:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1044 transitions. [2020-09-24 18:02:15,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 18:02:15,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:15,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:15,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:02:15,599 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:15,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:15,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1199080031, now seen corresponding path program 1 times [2020-09-24 18:02:15,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:15,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113213242] [2020-09-24 18:02:15,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:02:15,660 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:02:15,660 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:02:15,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:02:15,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:02:15 BoogieIcfgContainer [2020-09-24 18:02:15,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:02:15,696 INFO L168 Benchmark]: Toolchain (without parser) took 40657.61 ms. Allocated memory was 139.5 MB in the beginning and 713.0 MB in the end (delta: 573.6 MB). Free memory was 101.3 MB in the beginning and 511.5 MB in the end (delta: -410.2 MB). Peak memory consumption was 163.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:15,697 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:02:15,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.30 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.7 MB in the beginning and 168.8 MB in the end (delta: -68.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:15,698 INFO L168 Benchmark]: Boogie Preprocessor took 104.70 ms. Allocated memory is still 202.4 MB. Free memory was 168.8 MB in the beginning and 164.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:15,699 INFO L168 Benchmark]: RCFGBuilder took 1389.49 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 164.8 MB in the beginning and 174.5 MB in the end (delta: -9.7 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:15,700 INFO L168 Benchmark]: TraceAbstraction took 38448.14 ms. Allocated memory was 235.4 MB in the beginning and 713.0 MB in the end (delta: 477.6 MB). Free memory was 174.5 MB in the beginning and 511.5 MB in the end (delta: -337.0 MB). Peak memory consumption was 140.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:15,704 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 706.30 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.7 MB in the beginning and 168.8 MB in the end (delta: -68.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.70 ms. Allocated memory is still 202.4 MB. Free memory was 168.8 MB in the beginning and 164.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1389.49 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 164.8 MB in the beginning and 174.5 MB in the end (delta: -9.7 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38448.14 ms. Allocated memory was 235.4 MB in the beginning and 713.0 MB in the end (delta: 477.6 MB). Free memory was 174.5 MB in the beginning and 511.5 MB in the end (delta: -337.0 MB). Peak memory consumption was 140.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1178 SDtfs, 1491 SDslu, 1048 SDs, 0 SdLazy, 2447 SolverSat, 448 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=935occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 304 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.4s InterpolantComputationTime, 990 NumberOfCodeBlocks, 990 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 808 ConstructedInterpolants, 0 QuantifiedInterpolants, 320830 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...