/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=WIDEST --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_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:58:14,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:58:14,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:58:14,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:58:14,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:58:14,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:58:14,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:58:14,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:58:14,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:58:14,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:58:14,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:58:14,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:58:14,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:58:14,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:58:14,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:58:14,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:58:14,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:58:14,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:58:14,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:58:14,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:58:14,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:58:14,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:58:14,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:58:14,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:58:14,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:58:14,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:58:14,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:58:14,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:58:14,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:58:14,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:58:14,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:58:14,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:58:14,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:58:14,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:58:14,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:58:14,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:58:14,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:58:14,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:58:14,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:58:14,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:58:14,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:58:14,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:58:14,948 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:58:14,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:58:14,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:58:14,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:58:14,950 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:58:14,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:58:14,951 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:58:14,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:58:14,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:58:14,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:58:14,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:58:14,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:58:14,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:58:14,952 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:58:14,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:58:14,952 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:58:14,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:58:14,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:58:14,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:58:14,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:58:14,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:58:14,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:58:14,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:58:14,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:58:14,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:58:14,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:58:14,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:58:14,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:58:14,955 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:58:14,955 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:58:15,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:58:15,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:58:15,447 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:58:15,449 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:58:15,451 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:58:15,452 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-25 02:58:15,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c964735a2/1fb5a6b77d1846459a7dbec67eb6c9ae/FLAG6b252d1a7 [2020-09-25 02:58:16,183 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:58:16,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-25 02:58:16,200 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c964735a2/1fb5a6b77d1846459a7dbec67eb6c9ae/FLAG6b252d1a7 [2020-09-25 02:58:16,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c964735a2/1fb5a6b77d1846459a7dbec67eb6c9ae [2020-09-25 02:58:16,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:58:16,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:58:16,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:58:16,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:58:16,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:58:16,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:16" (1/1) ... [2020-09-25 02:58:16,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61445f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:16, skipping insertion in model container [2020-09-25 02:58:16,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:16" (1/1) ... [2020-09-25 02:58:16,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:58:16,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:58:16,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:58:16,881 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:58:17,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:58:17,103 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:58:17,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:17 WrapperNode [2020-09-25 02:58:17,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:58:17,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:58:17,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:58:17,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:58:17,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:17" (1/1) ... [2020-09-25 02:58:17,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:17" (1/1) ... [2020-09-25 02:58:17,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:17" (1/1) ... [2020-09-25 02:58:17,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:17" (1/1) ... [2020-09-25 02:58:17,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:17" (1/1) ... [2020-09-25 02:58:17,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:17" (1/1) ... [2020-09-25 02:58:17,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:17" (1/1) ... [2020-09-25 02:58:17,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:58:17,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:58:17,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:58:17,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:58:17,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:58:17,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:58:17,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:58:17,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:58:17,275 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:58:17,276 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:58:17,276 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:58:17,276 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:58:17,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:58:17,277 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:58:17,277 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:58:17,277 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:58:17,277 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:58:17,277 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:58:17,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:58:17,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:58:17,278 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:58:17,278 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:58:17,278 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:58:17,279 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:58:17,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:58:17,281 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:58:17,281 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:58:17,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:58:17,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:58:17,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:58:17,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:58:17,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:58:17,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:58:17,284 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:58:17,284 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:58:17,284 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:58:17,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:58:17,285 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:58:17,285 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:58:17,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:58:17,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:58:17,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:58:17,285 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:58:17,286 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:58:17,286 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:58:17,286 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:58:17,286 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:58:17,286 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:58:17,286 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:58:17,287 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:58:17,287 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:58:17,287 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:58:17,287 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:58:17,287 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:58:17,287 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:58:17,288 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:58:17,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:58:17,288 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:58:17,289 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:58:17,289 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:58:17,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:58:17,289 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:58:17,289 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:58:17,289 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:58:17,290 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:58:17,290 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:58:17,290 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:58:17,290 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:58:17,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:58:17,290 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:58:17,291 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:58:17,291 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:58:17,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:58:17,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:58:17,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:58:17,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:58:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:58:17,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:58:17,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:58:17,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:58:17,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:58:17,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:58:17,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:58:17,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:58:17,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:58:17,295 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:58:17,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:58:17,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:58:17,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:58:18,599 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:58:18,599 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:58:18,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:18 BoogieIcfgContainer [2020-09-25 02:58:18,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:58:18,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:58:18,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:58:18,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:58:18,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:58:16" (1/3) ... [2020-09-25 02:58:18,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c07a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:18, skipping insertion in model container [2020-09-25 02:58:18,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:17" (2/3) ... [2020-09-25 02:58:18,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c07a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:18, skipping insertion in model container [2020-09-25 02:58:18,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:18" (3/3) ... [2020-09-25 02:58:18,619 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2020-09-25 02:58:18,631 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:58:18,643 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:58:18,665 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:58:18,694 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:58:18,694 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:58:18,694 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:58:18,694 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:58:18,695 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:58:18,695 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:58:18,695 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:58:18,695 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:58:18,723 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-09-25 02:58:18,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 02:58:18,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:18,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:18,750 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:18,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:18,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1745842468, now seen corresponding path program 1 times [2020-09-25 02:58:18,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:18,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334167001] [2020-09-25 02:58:18,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:19,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:19,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:20,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:23,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:23,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 02:58:23,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:58:23,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4357 [2020-09-25 02:58:23,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:58:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:58:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 02:58:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:58:23,915 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:58:23,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:24,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:24,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:24,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:58:24,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:24,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-25 02:58:24,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:24,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:24,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:24,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:58:24,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:24,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:58:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:24,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:24,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:24,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:24,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:24,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:58:24,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:24,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:24,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:58:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:24,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:24,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:24,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:24,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:24,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:24,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:24,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:24,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:58:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:24,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:24,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:24,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:24,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:24,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:58:24,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:24,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:24,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:24,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:24,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:24,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:58:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:24,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:24,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:24,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:24,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:24,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:58:24,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:24,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:24,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:58:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:24,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:24,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:24,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:24,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:24,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:58:24,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:24,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:24,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:24,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:24,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:24,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 02:58:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:24,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:24,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:24,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:24,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:24,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:58:24,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:24,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:24,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:24,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:24,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:24,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 02:58:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:24,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:24,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:24,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:24,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:24,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:24,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:24,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:24,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:24,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:24,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:24,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334167001] [2020-09-25 02:58:24,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:24,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:58:24,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553120260] [2020-09-25 02:58:24,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:58:24,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:24,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:58:24,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:58:24,578 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 8 states. [2020-09-25 02:58:25,211 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:26,725 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:27,330 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 02:58:27,968 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 02:58:28,405 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:28,759 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:29,069 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:29,443 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:30,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:30,642 INFO L93 Difference]: Finished difference Result 541 states and 670 transitions. [2020-09-25 02:58:30,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 02:58:30,646 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 02:58:30,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:30,667 INFO L225 Difference]: With dead ends: 541 [2020-09-25 02:58:30,667 INFO L226 Difference]: Without dead ends: 377 [2020-09-25 02:58:30,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:58:30,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-09-25 02:58:30,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 334. [2020-09-25 02:58:30,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-25 02:58:30,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 376 transitions. [2020-09-25 02:58:30,810 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 376 transitions. Word has length 153 [2020-09-25 02:58:30,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:30,811 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 376 transitions. [2020-09-25 02:58:30,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:58:30,811 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 376 transitions. [2020-09-25 02:58:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 02:58:30,818 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:30,819 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] [2020-09-25 02:58:30,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:58:30,819 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:30,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:30,820 INFO L82 PathProgramCache]: Analyzing trace with hash -438576822, now seen corresponding path program 1 times [2020-09-25 02:58:30,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:30,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40822865] [2020-09-25 02:58:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:30,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:31,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:31,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:35,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:35,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 02:58:36,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:58:36,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5158 [2020-09-25 02:58:36,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:58:36,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:58:36,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 02:58:36,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:36,425 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:58:36,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:58:36,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 02:58:36,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:58:36,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:36,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:58:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:36,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:36,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:36,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:36,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:58:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:36,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:36,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:36,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:36,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:58:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:36,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:58:36,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:36,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:36,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:58:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:36,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:36,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:36,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:36,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 02:58:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:36,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:58:36,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:36,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:58:36,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:58:36,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:36,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 02:58:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:36,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:58:36,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:36,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:58:36,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 02:58:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:36,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:36,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:36,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:36,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:36,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 02:58:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:36,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:36,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:36,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:36,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:36,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:37,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40822865] [2020-09-25 02:58:37,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:37,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 02:58:37,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942735128] [2020-09-25 02:58:37,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 02:58:37,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:37,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 02:58:37,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 02:58:37,016 INFO L87 Difference]: Start difference. First operand 334 states and 376 transitions. Second operand 12 states. [2020-09-25 02:58:37,543 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:38,524 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:39,531 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:39,891 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:40,512 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:40,881 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:41,323 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:41,707 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:42,056 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:42,518 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:42,822 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:44,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:44,883 INFO L93 Difference]: Finished difference Result 773 states and 993 transitions. [2020-09-25 02:58:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 02:58:44,884 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 159 [2020-09-25 02:58:44,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:44,892 INFO L225 Difference]: With dead ends: 773 [2020-09-25 02:58:44,892 INFO L226 Difference]: Without dead ends: 610 [2020-09-25 02:58:44,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-09-25 02:58:44,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-09-25 02:58:45,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 520. [2020-09-25 02:58:45,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-09-25 02:58:45,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 589 transitions. [2020-09-25 02:58:45,013 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 589 transitions. Word has length 159 [2020-09-25 02:58:45,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:45,014 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 589 transitions. [2020-09-25 02:58:45,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 02:58:45,014 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 589 transitions. [2020-09-25 02:58:45,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 02:58:45,018 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:45,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:45,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:58:45,018 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:45,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:45,019 INFO L82 PathProgramCache]: Analyzing trace with hash 910621888, now seen corresponding path program 1 times [2020-09-25 02:58:45,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:45,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642675844] [2020-09-25 02:58:45,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:45,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:45,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:45,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 02:58:45,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:45,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-09-25 02:58:45,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:45,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:45,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:58:45,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:58:45,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:45,677 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:58:45,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:45,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:45,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:45,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:58:45,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:45,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 02:58:45,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:45,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:45,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:45,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:58:45,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:45,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:58:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:45,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:45,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:45,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:45,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:45,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:45,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:45,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:45,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:58:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:45,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:46,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:46,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:46,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:46,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:46,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:46,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:46,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:46,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:46,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:46,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:58:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:46,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:46,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:46,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:46,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:46,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:46,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:46,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:46,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:46,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:58:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:46,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:46,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:46,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:46,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:46,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:46,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:46,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:46,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:46,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 02:58:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:46,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:46,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:46,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:46,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:46,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:58:46,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:46,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:46,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:46,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:58:46,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:46,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 02:58:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:46,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:46,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:46,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:46,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:46,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:46,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:46,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:46,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 02:58:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:46,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:46,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:46,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:46,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:46,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:46,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:46,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:46,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:46,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:46,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:46,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 02:58:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:46,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:46,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:46,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:46,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:46,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:46,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:46,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:46,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642675844] [2020-09-25 02:58:46,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:46,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:58:46,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918461153] [2020-09-25 02:58:46,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:58:46,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:46,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:58:46,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:58:46,100 INFO L87 Difference]: Start difference. First operand 520 states and 589 transitions. Second operand 5 states. [2020-09-25 02:58:46,614 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:47,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:47,640 INFO L93 Difference]: Finished difference Result 994 states and 1183 transitions. [2020-09-25 02:58:47,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 02:58:47,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 02:58:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:47,647 INFO L225 Difference]: With dead ends: 994 [2020-09-25 02:58:47,647 INFO L226 Difference]: Without dead ends: 584 [2020-09-25 02:58:47,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:58:47,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-09-25 02:58:47,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 520. [2020-09-25 02:58:47,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-09-25 02:58:47,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 584 transitions. [2020-09-25 02:58:47,727 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 584 transitions. Word has length 168 [2020-09-25 02:58:47,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:47,728 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 584 transitions. [2020-09-25 02:58:47,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:58:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 584 transitions. [2020-09-25 02:58:47,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 02:58:47,732 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:47,732 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] [2020-09-25 02:58:47,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:58:47,732 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:47,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:47,733 INFO L82 PathProgramCache]: Analyzing trace with hash -481228589, now seen corresponding path program 1 times [2020-09-25 02:58:47,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:47,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014709403] [2020-09-25 02:58:47,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 02:58:47,796 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 02:58:47,796 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:58:47,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:58:47,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:58:47 BoogieIcfgContainer [2020-09-25 02:58:47,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:58:47,831 INFO L168 Benchmark]: Toolchain (without parser) took 31395.09 ms. Allocated memory was 140.5 MB in the beginning and 575.1 MB in the end (delta: 434.6 MB). Free memory was 103.3 MB in the beginning and 190.6 MB in the end (delta: -87.3 MB). Peak memory consumption was 347.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:47,832 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 02:58:47,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.07 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.6 MB in the beginning and 174.7 MB in the end (delta: -72.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:47,834 INFO L168 Benchmark]: Boogie Preprocessor took 93.99 ms. Allocated memory is still 203.9 MB. Free memory was 174.7 MB in the beginning and 170.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:47,835 INFO L168 Benchmark]: RCFGBuilder took 1409.42 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 169.9 MB in the beginning and 181.9 MB in the end (delta: -11.9 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:47,836 INFO L168 Benchmark]: TraceAbstraction took 29218.95 ms. Allocated memory was 235.4 MB in the beginning and 575.1 MB in the end (delta: 339.7 MB). Free memory was 180.4 MB in the beginning and 190.6 MB in the end (delta: -10.2 MB). Peak memory consumption was 329.6 MB. Max. memory is 7.1 GB. [2020-09-25 02:58:47,840 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 664.07 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.6 MB in the beginning and 174.7 MB in the end (delta: -72.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.99 ms. Allocated memory is still 203.9 MB. Free memory was 174.7 MB in the beginning and 170.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1409.42 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 169.9 MB in the beginning and 181.9 MB in the end (delta: -11.9 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29218.95 ms. Allocated memory was 235.4 MB in the beginning and 575.1 MB in the end (delta: 339.7 MB). Free memory was 180.4 MB in the beginning and 190.6 MB in the end (delta: -10.2 MB). Peak memory consumption was 329.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L95] int pumpRunning = 0; [L96] int systemActive = 1; [L297] int cleanupTimeShifts = 4; [L562] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L760] int waterLevel = 1; [L761] int methaneLevelCritical = 0; [L370] int retValue_acc ; [L371] int tmp ; [L375] FCALL select_helpers() [L376] FCALL select_features() [L377] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L377] RET, EXPR valid_product() [L377] tmp = valid_product() [L379] COND TRUE \read(tmp) [L381] FCALL setup() [L382] CALL runTest() [L364] CALL test() [L233] int splverifierCounter ; [L234] int tmp ; [L235] int tmp___0 ; [L236] int tmp___1 ; [L237] int tmp___2 ; [L240] splverifierCounter = 0 [L242] COND TRUE 1 [L244] COND TRUE splverifierCounter < 4 [L250] tmp = __VERIFIER_nondet_int() [L252] COND TRUE \read(tmp) [L254] CALL waterRise() [L778] COND TRUE waterLevel < 2 [L779] waterLevel = waterLevel + 1 [L254] RET waterRise() [L260] tmp___0 = __VERIFIER_nondet_int() [L262] COND FALSE !(\read(tmp___0)) [L270] tmp___2 = __VERIFIER_nondet_int() [L272] COND TRUE \read(tmp___2) [L285] CALL timeShift() [L103] COND FALSE !(\read(pumpRunning)) [L110] COND TRUE \read(systemActive) [L112] CALL processEnvironment() [L132] int tmp ; [L135] COND FALSE !(\read(pumpRunning)) [L150] FCALL processEnvironment__wrappee__base() [L112] RET processEnvironment() [L118] CALL __utac_acc__Specification3_spec__1() [L841] int tmp ; [L842] int tmp___0 ; [L843] int tmp___1 ; [L847] CALL, EXPR isMethaneLevelCritical() [L799] int retValue_acc ; [L802] retValue_acc = methaneLevelCritical [L803] return (retValue_acc); [L847] RET, EXPR isMethaneLevelCritical() [L847] tmp = isMethaneLevelCritical() [L849] COND FALSE !(\read(tmp)) [L853] CALL, EXPR getWaterLevel() [L831] int retValue_acc ; [L834] retValue_acc = waterLevel [L835] return (retValue_acc); [L853] RET, EXPR getWaterLevel() [L853] tmp___0 = getWaterLevel() [L855] COND TRUE tmp___0 == 2 [L857] CALL, EXPR isPumpRunning() [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L857] RET, EXPR isPumpRunning() [L857] tmp___1 = isPumpRunning() [L859] COND FALSE !(\read(tmp___1)) [L863] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 590 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 760 SDtfs, 1323 SDslu, 1578 SDs, 0 SdLazy, 3519 SolverSat, 551 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=520occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 197 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.5s InterpolantComputationTime, 656 NumberOfCodeBlocks, 656 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 211272 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...