/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:33:44,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:33:44,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:33:44,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:33:44,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:33:44,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:33:44,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:33:44,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:33:44,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:33:44,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:33:44,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:33:44,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:33:44,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:33:44,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:33:44,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:33:44,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:33:44,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:33:44,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:33:44,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:33:44,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:33:44,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:33:44,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:33:44,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:33:44,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:33:44,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:33:44,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:33:44,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:33:44,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:33:44,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:33:44,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:33:44,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:33:44,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:33:44,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:33:44,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:33:44,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:33:44,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:33:44,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:33:44,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:33:44,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:33:44,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:33:44,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:33:44,723 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 [2020-10-27 03:33:44,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:33:44,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:33:44,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:33:44,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:33:44,780 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:33:44,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:33:44,781 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:33:44,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:33:44,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:33:44,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:33:44,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:33:44,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:33:44,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:33:44,783 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:33:44,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:33:44,784 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:33:44,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:33:44,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:33:44,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:33:44,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:33:44,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:33:44,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:33:44,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:33:44,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:33:44,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:33:44,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:33:44,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:33:44,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:33:44,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:33:44,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:33:45,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:33:45,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:33:45,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:33:45,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:33:45,210 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:33:45,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-10-27 03:33:45,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/171fdda58/90afcddfa2b74634802e4e368f640c38/FLAGe4eb0271c [2020-10-27 03:33:45,992 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:33:45,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-10-27 03:33:46,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/171fdda58/90afcddfa2b74634802e4e368f640c38/FLAGe4eb0271c [2020-10-27 03:33:46,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/171fdda58/90afcddfa2b74634802e4e368f640c38 [2020-10-27 03:33:46,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:33:46,257 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:33:46,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:33:46,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:33:46,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:33:46,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:33:46" (1/1) ... [2020-10-27 03:33:46,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526d158b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:46, skipping insertion in model container [2020-10-27 03:33:46,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:33:46" (1/1) ... [2020-10-27 03:33:46,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:33:46,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:33:46,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:33:46,711 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:33:46,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:33:46,838 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:33:46,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:46 WrapperNode [2020-10-27 03:33:46,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:33:46,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:33:46,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:33:46,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:33:46,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:46" (1/1) ... [2020-10-27 03:33:46,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:46" (1/1) ... [2020-10-27 03:33:46,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:46" (1/1) ... [2020-10-27 03:33:46,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:46" (1/1) ... [2020-10-27 03:33:46,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:46" (1/1) ... [2020-10-27 03:33:46,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:46" (1/1) ... [2020-10-27 03:33:46,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:46" (1/1) ... [2020-10-27 03:33:46,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:33:46,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:33:46,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:33:46,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:33:46,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:46" (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 [2020-10-27 03:33:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:33:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:33:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:33:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:33:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:33:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:33:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:33:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:33:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:33:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:33:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:33:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:33:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:33:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:33:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:33:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:33:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:33:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:33:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:33:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:33:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:33:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:33:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-27 03:33:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:33:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:33:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:33:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:33:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:33:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:33:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:33:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:33:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:33:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:33:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:33:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:33:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:33:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:33:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:33:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:33:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:33:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:33:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:33:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:33:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:33:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:33:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:33:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:33:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:33:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:33:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:33:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:33:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:33:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:33:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:33:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:33:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:33:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:33:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:33:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:33:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:33:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:33:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:33:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:33:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:33:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:33:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:33:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:33:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:33:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:33:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:33:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-27 03:33:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:33:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:33:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:33:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:33:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:33:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:33:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:33:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:33:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:33:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:33:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:33:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:33:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:33:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:33:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:33:48,217 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:33:48,218 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:33:48,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:33:48 BoogieIcfgContainer [2020-10-27 03:33:48,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:33:48,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:33:48,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:33:48,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:33:48,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:33:46" (1/3) ... [2020-10-27 03:33:48,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acf415d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:33:48, skipping insertion in model container [2020-10-27 03:33:48,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:33:46" (2/3) ... [2020-10-27 03:33:48,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acf415d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:33:48, skipping insertion in model container [2020-10-27 03:33:48,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:33:48" (3/3) ... [2020-10-27 03:33:48,230 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2020-10-27 03:33:48,278 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:33:48,285 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:33:48,301 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:33:48,332 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:33:48,332 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:33:48,332 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:33:48,332 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:33:48,332 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:33:48,332 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:33:48,333 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:33:48,333 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:33:48,354 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2020-10-27 03:33:48,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 03:33:48,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:33:48,364 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] [2020-10-27 03:33:48,365 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:33:48,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:33:48,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1535182622, now seen corresponding path program 1 times [2020-10-27 03:33:48,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:33:48,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317629487] [2020-10-27 03:33:48,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:33:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:48,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:48,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:49,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:51,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:51,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 03:33:51,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:33:51,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2926 [2020-10-27 03:33:51,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:51,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:33:51,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:33:51,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:33:51,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 03:33:52,037 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:33:52,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:33:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:52,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:52,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:52,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:33:52,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:52,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-27 03:33:52,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:52,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:52,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:52,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:33:52,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:52,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:33:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:52,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:52,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:52,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:33:52,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:33:52,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:52,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:52,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:33:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:52,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:33:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:52,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:52,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:52,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:33:52,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:52,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:33:52,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:52,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:52,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:52,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:33:52,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:52,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:33:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:52,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:52,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:33:52,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:52,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:33:52,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:52,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:52,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:52,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:33:52,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:33:52,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:33:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:52,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:52,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:52,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:33:52,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:52,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:33:52,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:52,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:52,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:52,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:33:52,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:52,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:33:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:52,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:52,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:52,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:33:52,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:52,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:33:52,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:52,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:33:52,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:33:52,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:33:52,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:33:52,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:33:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:52,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:52,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:52,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:33:52,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:52,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:33:52,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:33:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:33:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:33:52,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:52,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 03:33:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:52,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:52,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:52,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:33:52,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:33:52,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:52,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:33:52,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:33:52,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:33:52,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:52,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:33:52,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317629487] [2020-10-27 03:33:52,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:33:52,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 03:33:52,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261324232] [2020-10-27 03:33:52,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 03:33:52,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:33:52,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 03:33:52,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 03:33:52,295 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 4 states. [2020-10-27 03:33:52,764 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:33:53,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:33:53,748 INFO L93 Difference]: Finished difference Result 225 states and 300 transitions. [2020-10-27 03:33:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 03:33:53,750 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-27 03:33:53,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:33:53,764 INFO L225 Difference]: With dead ends: 225 [2020-10-27 03:33:53,764 INFO L226 Difference]: Without dead ends: 121 [2020-10-27 03:33:53,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 03:33:53,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-27 03:33:53,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 92. [2020-10-27 03:33:53,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-27 03:33:53,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 105 transitions. [2020-10-27 03:33:53,907 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 105 transitions. Word has length 53 [2020-10-27 03:33:53,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:33:53,908 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 105 transitions. [2020-10-27 03:33:53,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 03:33:53,908 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 105 transitions. [2020-10-27 03:33:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-27 03:33:53,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:33:53,913 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] [2020-10-27 03:33:53,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:33:53,914 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:33:53,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:33:53,914 INFO L82 PathProgramCache]: Analyzing trace with hash -274373060, now seen corresponding path program 1 times [2020-10-27 03:33:53,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:33:53,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138658807] [2020-10-27 03:33:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:33:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:53,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:54,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:56,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:56,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-27 03:33:56,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:33:56,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2481 [2020-10-27 03:33:56,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:56,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 03:33:56,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:33:56,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-27 03:33:56,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:56,852 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:33:56,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:33:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:56,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:56,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:56,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:33:56,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:56,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 03:33:56,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:56,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:33:56,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:57,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:33:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:57,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:57,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:57,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:33:57,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:57,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:33:57,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:57,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:57,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:57,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:33:57,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:57,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:33:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:57,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:57,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:57,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:33:57,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:57,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:33:57,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:57,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:57,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:57,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:33:57,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:57,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:33:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:57,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:57,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:57,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:33:57,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:57,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:33:57,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:57,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:57,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:57,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:33:57,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:57,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:33:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:57,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:57,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:57,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:33:57,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:57,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:33:57,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:57,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:57,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:57,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:33:57,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:57,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 03:33:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:57,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:57,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:57,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:33:57,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:57,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:33:57,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:33:57,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:57,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 03:33:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:57,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:57,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:57,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:33:57,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:57,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:33:57,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:57,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:33:57,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:33:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:33:57,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 03:33:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:57,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:57,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:57,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:33:57,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:57,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:33:57,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:57,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:33:57,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:33:57,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:33:57,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:57,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 03:33:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:33:57,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:33:57,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:33:57,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:33:57,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:33:57,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:33:57,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:33:57,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:33:57,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:33:57,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:33:57,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:33:57,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:33:57,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138658807] [2020-10-27 03:33:57,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:33:57,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:33:57,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867539450] [2020-10-27 03:33:57,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:33:57,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:33:57,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:33:57,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:33:57,157 INFO L87 Difference]: Start difference. First operand 92 states and 105 transitions. Second operand 7 states. [2020-10-27 03:33:57,742 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:33:59,110 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-27 03:33:59,435 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:33:59,765 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:34:00,063 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 03:34:00,480 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:34:00,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:34:00,990 INFO L93 Difference]: Finished difference Result 249 states and 317 transitions. [2020-10-27 03:34:00,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 03:34:00,991 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-10-27 03:34:00,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:34:00,996 INFO L225 Difference]: With dead ends: 249 [2020-10-27 03:34:00,996 INFO L226 Difference]: Without dead ends: 181 [2020-10-27 03:34:00,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-27 03:34:00,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-27 03:34:01,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 155. [2020-10-27 03:34:01,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-27 03:34:01,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 186 transitions. [2020-10-27 03:34:01,061 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 186 transitions. Word has length 57 [2020-10-27 03:34:01,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:34:01,061 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 186 transitions. [2020-10-27 03:34:01,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:34:01,062 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 186 transitions. [2020-10-27 03:34:01,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-27 03:34:01,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:34:01,065 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] [2020-10-27 03:34:01,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:34:01,065 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:34:01,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:34:01,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1450339358, now seen corresponding path program 1 times [2020-10-27 03:34:01,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:34:01,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863057578] [2020-10-27 03:34:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:34:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:01,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:01,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:01,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:03,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:04,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:04,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-27 03:34:04,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 03:34:04,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3448 [2020-10-27 03:34:04,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:04,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 03:34:04,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:34:04,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-27 03:34:04,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:04,869 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:34:04,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:34:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:04,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:04,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:04,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:04,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:04,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 03:34:04,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:04,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:04,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:04,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:34:04,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:04,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:34:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:04,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:04,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:04,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:34:04,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:04,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:34:04,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:34:04,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:04,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:34:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:04,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:04,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:04,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:34:04,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:04,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:34:04,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:04,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:34:04,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:04,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:34:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:04,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:04,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:04,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:04,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:04,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:34:04,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:04,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:34:04,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:04,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:34:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:04,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:04,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:04,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:34:04,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:05,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:34:05,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:05,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:05,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:05,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:34:05,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:05,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:34:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:05,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:05,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:05,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:05,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:05,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:34:05,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:05,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:34:05,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:34:05,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 03:34:05,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:05,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 03:34:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:05,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:05,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:05,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:34:05,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:05,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:34:05,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:05,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:05,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:05,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:34:05,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:05,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 03:34:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:05,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:05,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:05,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:05,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:05,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:34:05,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:34:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:34:05,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:05,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 03:34:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:05,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:05,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:05,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:05,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:05,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:34:05,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:34:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:34:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:34:05,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:05,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 03:34:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:34:05,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:34:05,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:34:05,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:34:05,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:34:05,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:34:05,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:34:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:34:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:34:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:34:05,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:34:05,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:34:05,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863057578] [2020-10-27 03:34:05,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:34:05,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 03:34:05,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095733814] [2020-10-27 03:34:05,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 03:34:05,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:34:05,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 03:34:05,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-27 03:34:05,098 INFO L87 Difference]: Start difference. First operand 155 states and 186 transitions. Second operand 10 states. [2020-10-27 03:34:05,611 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:34:06,474 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:34:07,160 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:34:07,610 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:34:08,003 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:34:08,360 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:34:08,684 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:34:09,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:34:09,884 INFO L93 Difference]: Finished difference Result 335 states and 448 transitions. [2020-10-27 03:34:09,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 03:34:09,886 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2020-10-27 03:34:09,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:34:09,892 INFO L225 Difference]: With dead ends: 335 [2020-10-27 03:34:09,892 INFO L226 Difference]: Without dead ends: 234 [2020-10-27 03:34:09,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2020-10-27 03:34:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-27 03:34:09,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 195. [2020-10-27 03:34:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-27 03:34:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 227 transitions. [2020-10-27 03:34:09,965 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 227 transitions. Word has length 61 [2020-10-27 03:34:09,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:34:09,965 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 227 transitions. [2020-10-27 03:34:09,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 03:34:09,965 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 227 transitions. [2020-10-27 03:34:09,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 03:34:09,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:34:09,969 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] [2020-10-27 03:34:09,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:34:09,969 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:34:09,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:34:09,970 INFO L82 PathProgramCache]: Analyzing trace with hash 2138420474, now seen corresponding path program 1 times [2020-10-27 03:34:09,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:34:09,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814330224] [2020-10-27 03:34:09,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:34:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:34:10,013 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:34:10,013 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:34:10,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:34:10,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:34:10 BoogieIcfgContainer [2020-10-27 03:34:10,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:34:10,045 INFO L168 Benchmark]: Toolchain (without parser) took 23791.16 ms. Allocated memory was 151.0 MB in the beginning and 505.4 MB in the end (delta: 354.4 MB). Free memory was 125.7 MB in the beginning and 389.7 MB in the end (delta: -263.9 MB). Peak memory consumption was 91.4 MB. Max. memory is 8.0 GB. [2020-10-27 03:34:10,045 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:34:10,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.31 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 105.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-27 03:34:10,047 INFO L168 Benchmark]: Boogie Preprocessor took 92.39 ms. Allocated memory is still 151.0 MB. Free memory was 105.4 MB in the beginning and 101.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:34:10,048 INFO L168 Benchmark]: RCFGBuilder took 1286.75 ms. Allocated memory is still 151.0 MB. Free memory was 101.6 MB in the beginning and 50.2 MB in the end (delta: 51.4 MB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. [2020-10-27 03:34:10,049 INFO L168 Benchmark]: TraceAbstraction took 21817.20 ms. Allocated memory was 151.0 MB in the beginning and 505.4 MB in the end (delta: 354.4 MB). Free memory was 49.7 MB in the beginning and 389.7 MB in the end (delta: -340.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. [2020-10-27 03:34:10,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 578.31 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 105.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 92.39 ms. Allocated memory is still 151.0 MB. Free memory was 105.4 MB in the beginning and 101.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1286.75 ms. Allocated memory is still 151.0 MB. Free memory was 101.6 MB in the beginning and 50.2 MB in the end (delta: 51.4 MB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21817.20 ms. Allocated memory was 151.0 MB in the beginning and 505.4 MB in the end (delta: 354.4 MB). Free memory was 49.7 MB in the beginning and 389.7 MB in the end (delta: -340.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L258] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L464] int pumpRunning = 0; [L465] int systemActive = 1; [L685] int cleanupTimeShifts = 4; [L781] int waterLevel = 1; [L782] int methaneLevelCritical = 0; [L758] int retValue_acc ; [L759] int tmp ; [L763] FCALL select_helpers() [L764] FCALL select_features() [L765] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L765] RET, EXPR valid_product() [L765] tmp = valid_product() [L767] COND TRUE \read(tmp) [L769] FCALL setup() [L770] CALL runTest() [L752] CALL test() [L619] int splverifierCounter ; [L620] int tmp ; [L621] int tmp___0 ; [L622] int tmp___1 ; [L623] int tmp___2 ; [L626] splverifierCounter = 0 [L628] COND TRUE 1 [L630] COND TRUE splverifierCounter < 4 [L636] tmp = __VERIFIER_nondet_int() [L638] COND TRUE \read(tmp) [L640] CALL waterRise() [L799] COND TRUE waterLevel < 2 [L800] waterLevel = waterLevel + 1 [L640] RET waterRise() [L646] tmp___0 = __VERIFIER_nondet_int() [L648] COND FALSE !(\read(tmp___0)) [L656] tmp___2 = __VERIFIER_nondet_int() [L658] COND FALSE !(\read(tmp___2)) [L664] tmp___1 = __VERIFIER_nondet_int() [L666] COND TRUE \read(tmp___1) [L673] CALL timeShift() [L472] COND FALSE !(\read(pumpRunning)) [L479] COND TRUE \read(systemActive) [L481] FCALL processEnvironment() [L487] CALL __utac_acc__Specification3_spec__1() [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L588] CALL, EXPR isMethaneLevelCritical() [L820] int retValue_acc ; [L823] retValue_acc = methaneLevelCritical [L824] return (retValue_acc); [L588] RET, EXPR isMethaneLevelCritical() [L588] tmp = isMethaneLevelCritical() [L590] COND FALSE !(\read(tmp)) [L594] CALL, EXPR getWaterLevel() [L852] int retValue_acc ; [L855] retValue_acc = waterLevel [L856] return (retValue_acc); [L594] RET, EXPR getWaterLevel() [L594] tmp___0 = getWaterLevel() [L596] COND TRUE tmp___0 == 2 [L598] CALL, EXPR isPumpRunning() [L527] int retValue_acc ; [L530] retValue_acc = pumpRunning [L531] return (retValue_acc); [L598] RET, EXPR isPumpRunning() [L598] tmp___1 = isPumpRunning() [L600] COND FALSE !(\read(tmp___1)) [L604] CALL __automaton_fail() [L84] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product02.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 213 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 322 SDtfs, 561 SDslu, 458 SDs, 0 SdLazy, 1679 SolverSat, 329 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 94 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 53656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...