/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=HIGHLEXORDER --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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:29:14,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:29:14,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:29:14,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:29:14,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:29:14,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:29:14,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:29:14,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:29:14,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:29:14,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:29:14,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:29:14,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:29:14,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:29:14,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:29:14,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:29:14,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:29:14,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:29:14,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:29:14,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:29:14,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:29:14,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:29:14,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:29:14,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:29:14,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:29:14,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:29:14,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:29:14,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:29:14,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:29:14,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:29:14,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:29:14,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:29:14,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:29:14,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:29:14,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:29:14,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:29:14,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:29:14,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:29:14,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:29:14,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:29:14,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:29:14,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:29:14,250 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:29:14,280 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:29:14,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:29:14,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:29:14,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:29:14,282 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:29:14,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:29:14,282 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:29:14,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:29:14,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:29:14,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:29:14,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:29:14,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:29:14,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:29:14,284 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:29:14,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:29:14,284 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:29:14,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:29:14,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:29:14,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:29:14,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:29:14,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:29:14,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:29:14,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:29:14,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:29:14,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:29:14,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:29:14,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:29:14,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:29:14,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:29:14,287 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:29:14,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:29:14,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:29:14,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:29:14,796 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:29:14,796 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:29:14,798 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2020-09-24 22:29:14,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c3fbbce1/b8b34c398ee54d59b8406f18cd9672c0/FLAG8fc2dd059 [2020-09-24 22:29:15,575 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:29:15,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2020-09-24 22:29:15,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c3fbbce1/b8b34c398ee54d59b8406f18cd9672c0/FLAG8fc2dd059 [2020-09-24 22:29:15,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c3fbbce1/b8b34c398ee54d59b8406f18cd9672c0 [2020-09-24 22:29:15,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:29:15,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:29:15,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:29:15,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:29:15,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:29:15,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:29:15" (1/1) ... [2020-09-24 22:29:15,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:15, skipping insertion in model container [2020-09-24 22:29:15,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:29:15" (1/1) ... [2020-09-24 22:29:15,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:29:15,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:29:16,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:29:16,258 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:29:16,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:29:16,498 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:29:16,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:16 WrapperNode [2020-09-24 22:29:16,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:29:16,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:29:16,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:29:16,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:29:16,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:16" (1/1) ... [2020-09-24 22:29:16,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:16" (1/1) ... [2020-09-24 22:29:16,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:16" (1/1) ... [2020-09-24 22:29:16,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:16" (1/1) ... [2020-09-24 22:29:16,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:16" (1/1) ... [2020-09-24 22:29:16,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:16" (1/1) ... [2020-09-24 22:29:16,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:16" (1/1) ... [2020-09-24 22:29:16,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:29:16,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:29:16,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:29:16,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:29:16,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:29:16,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:29:16,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:29:16,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:29:16,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:29:16,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:29:16,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:29:16,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:29:16,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:29:16,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:29:16,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:29:16,713 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:29:16,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:29:16,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:29:16,713 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:29:16,714 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:29:16,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:29:16,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:29:16,715 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:29:16,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:29:16,716 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:29:16,716 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:29:16,716 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:29:16,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:29:16,717 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:29:16,717 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:29:16,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:29:16,719 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:29:16,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:29:16,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:29:16,719 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:29:16,719 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:29:16,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:29:16,719 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:29:16,719 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:29:16,719 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:29:16,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:29:16,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:29:16,720 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:29:16,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:29:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:29:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:29:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:29:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:29:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:29:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:29:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:29:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:29:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:29:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:29:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:29:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:29:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:29:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:29:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:29:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:29:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:29:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:29:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:29:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:29:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:29:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:29:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:29:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:29:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:29:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:29:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:29:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:29:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:29:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:29:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:29:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:29:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:29:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:29:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:29:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:29:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:29:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:29:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:29:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:29:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:29:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:29:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:29:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:29:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:29:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:29:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:29:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:29:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:29:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:29:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:29:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:29:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:29:18,083 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:29:18,083 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:29:18,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:18 BoogieIcfgContainer [2020-09-24 22:29:18,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:29:18,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:29:18,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:29:18,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:29:18,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:29:15" (1/3) ... [2020-09-24 22:29:18,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c595952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:18, skipping insertion in model container [2020-09-24 22:29:18,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:16" (2/3) ... [2020-09-24 22:29:18,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c595952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:18, skipping insertion in model container [2020-09-24 22:29:18,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:18" (3/3) ... [2020-09-24 22:29:18,102 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2020-09-24 22:29:18,117 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:29:18,130 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:29:18,155 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:29:18,190 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:29:18,190 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:29:18,191 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:29:18,191 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:29:18,191 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:29:18,191 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:29:18,191 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:29:18,191 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:29:18,223 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-24 22:29:18,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:29:18,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:18,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:18,246 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:18,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:18,256 INFO L82 PathProgramCache]: Analyzing trace with hash -578069207, now seen corresponding path program 1 times [2020-09-24 22:29:18,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:18,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891274295] [2020-09-24 22:29:18,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:18,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:19,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:20,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:23,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:23,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:29:23,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:29:23,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-24 22:29:23,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:23,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:23,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:29:23,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:23,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 22:29:24,223 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:24,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:24,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-24 22:29:24,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:24,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:24,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:24,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:24,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:24,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:24,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:24,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:24,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:24,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:24,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:24,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:29:24,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:24,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:24,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:24,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:24,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:24,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:29:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:24,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:24,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:24,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:24,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:29:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:24,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:24,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:24,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:29:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:24,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:24,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:24,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:24,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:24,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:24,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:24,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:24,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:24,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891274295] [2020-09-24 22:29:24,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:24,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:29:24,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17868149] [2020-09-24 22:29:24,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:29:24,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:24,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:29:24,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:29:24,607 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 3 states. [2020-09-24 22:29:25,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:25,963 INFO L93 Difference]: Finished difference Result 470 states and 558 transitions. [2020-09-24 22:29:25,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:29:25,966 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:29:25,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:25,987 INFO L225 Difference]: With dead ends: 470 [2020-09-24 22:29:25,987 INFO L226 Difference]: Without dead ends: 293 [2020-09-24 22:29:25,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:29:26,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-24 22:29:26,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 251. [2020-09-24 22:29:26,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-09-24 22:29:26,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 271 transitions. [2020-09-24 22:29:26,105 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 271 transitions. Word has length 153 [2020-09-24 22:29:26,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:26,110 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 271 transitions. [2020-09-24 22:29:26,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:29:26,111 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 271 transitions. [2020-09-24 22:29:26,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:29:26,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:26,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:26,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:29:26,123 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:26,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:26,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1405160622, now seen corresponding path program 1 times [2020-09-24 22:29:26,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:26,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838389797] [2020-09-24 22:29:26,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:26,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:26,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:28,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:31,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:31,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:29:31,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:29:31,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-24 22:29:31,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:31,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:31,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:29:31,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:29:31,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:31,575 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:31,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:31,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:31,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:31,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:31,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:31,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 22:29:31,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:31,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:31,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:31,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:31,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:31,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:31,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:31,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:31,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:31,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:31,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:31,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:31,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:31,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:31,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:31,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:31,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:31,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:31,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:31,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:31,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:31,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:31,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:31,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:31,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:31,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:31,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:31,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:31,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:31,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:31,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:31,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:31,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:31,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:31,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:31,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:31,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:31,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:31,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:29:31,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:31,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:31,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:31,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:31,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:31,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:29:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:31,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:31,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:31,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:31,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:31,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:31,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:31,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:31,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:31,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:31,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:31,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:29:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:31,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:31,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:31,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:31,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:31,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:31,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:31,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:31,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:31,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:31,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:29:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:31,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:31,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:31,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:31,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:31,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:31,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:31,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:31,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:31,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:31,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:31,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838389797] [2020-09-24 22:29:31,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:31,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:29:31,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270145864] [2020-09-24 22:29:31,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:29:31,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:31,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:29:31,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:29:31,796 INFO L87 Difference]: Start difference. First operand 251 states and 271 transitions. Second operand 4 states. [2020-09-24 22:29:32,414 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:29:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:33,239 INFO L93 Difference]: Finished difference Result 374 states and 419 transitions. [2020-09-24 22:29:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:29:33,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:29:33,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:33,243 INFO L225 Difference]: With dead ends: 374 [2020-09-24 22:29:33,244 INFO L226 Difference]: Without dead ends: 276 [2020-09-24 22:29:33,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:29:33,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-24 22:29:33,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 241. [2020-09-24 22:29:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-09-24 22:29:33,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 258 transitions. [2020-09-24 22:29:33,287 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 258 transitions. Word has length 154 [2020-09-24 22:29:33,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:33,288 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 258 transitions. [2020-09-24 22:29:33,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:29:33,288 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 258 transitions. [2020-09-24 22:29:33,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 22:29:33,290 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:33,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:33,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:29:33,291 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:33,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:33,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1087460767, now seen corresponding path program 1 times [2020-09-24 22:29:33,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:33,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408975236] [2020-09-24 22:29:33,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:33,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:33,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 22:29:36,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:29:36,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2900 [2020-09-24 22:29:36,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:36,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 22:29:36,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:29:36,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 32 [2020-09-24 22:29:36,563 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:36,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:36,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 22:29:36,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:36,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:36,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:36,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:36,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:36,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:36,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:36,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:36,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:36,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:29:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:29:36,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:36,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:36,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 22:29:36,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:29:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:36,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:36,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:36,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 22:29:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:36,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:36,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:36,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 22:29:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:36,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:36,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:36,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:36,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:36,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:29:36,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:36,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:36,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:36,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408975236] [2020-09-24 22:29:36,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:36,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:29:36,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757563749] [2020-09-24 22:29:36,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:29:36,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:36,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:29:36,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:29:36,809 INFO L87 Difference]: Start difference. First operand 241 states and 258 transitions. Second operand 5 states. [2020-09-24 22:29:37,354 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:39,237 INFO L93 Difference]: Finished difference Result 569 states and 655 transitions. [2020-09-24 22:29:39,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:29:39,238 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 22:29:39,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:39,247 INFO L225 Difference]: With dead ends: 569 [2020-09-24 22:29:39,248 INFO L226 Difference]: Without dead ends: 438 [2020-09-24 22:29:39,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:29:39,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-09-24 22:29:39,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 356. [2020-09-24 22:29:39,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-09-24 22:29:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 389 transitions. [2020-09-24 22:29:39,325 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 389 transitions. Word has length 167 [2020-09-24 22:29:39,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:39,325 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 389 transitions. [2020-09-24 22:29:39,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:29:39,326 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 389 transitions. [2020-09-24 22:29:39,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 22:29:39,328 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:39,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:39,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:29:39,329 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:39,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:39,329 INFO L82 PathProgramCache]: Analyzing trace with hash 364120366, now seen corresponding path program 1 times [2020-09-24 22:29:39,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:39,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370467933] [2020-09-24 22:29:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:39,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:41,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:41,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 22:29:41,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:41,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1686 [2020-09-24 22:29:41,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:41,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:29:41,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 22:29:41,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 22:29:41,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:41,494 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:29:41,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:29:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:41,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:41,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:41,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:29:41,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:41,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-24 22:29:41,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:41,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:41,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:41,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 22:29:41,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:41,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:29:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:41,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:41,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:41,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:41,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:41,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:41,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:41,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:41,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:41,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:41,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:41,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:29:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:41,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:41,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:41,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:41,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:41,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:41,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:41,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:41,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:41,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:41,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:41,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:29:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:41,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:41,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:41,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:41,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:41,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:29:41,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:41,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:41,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:41,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:29:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:41,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:41,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:41,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:29:41,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:41,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:29:41,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:41,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:41,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:41,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:29:41,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:29:41,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 22:29:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:41,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:41,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:41,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:29:41,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:41,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:41,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:29:41,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:41,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 22:29:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:41,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:41,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:41,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:41,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:41,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:29:41,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:29:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:41,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:41,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 22:29:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:41,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:41,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:41,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:41,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:41,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:29:41,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:29:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:29:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:29:41,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:29:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:29:42,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:29:42,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:29:42,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:29:42,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:29:42,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:29:42,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:29:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:29:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:29:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:29:42,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:29:42,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:29:42,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370467933] [2020-09-24 22:29:42,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:29:42,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:29:42,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287485118] [2020-09-24 22:29:42,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:29:42,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:29:42,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:29:42,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:29:42,105 INFO L87 Difference]: Start difference. First operand 356 states and 389 transitions. Second operand 9 states. [2020-09-24 22:29:42,746 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:44,750 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:45,374 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 22:29:45,744 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:46,141 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:29:46,458 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:29:46,790 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:29:47,109 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:29:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:29:47,944 INFO L93 Difference]: Finished difference Result 926 states and 1101 transitions. [2020-09-24 22:29:47,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:29:47,946 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 22:29:47,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:29:47,952 INFO L225 Difference]: With dead ends: 926 [2020-09-24 22:29:47,952 INFO L226 Difference]: Without dead ends: 680 [2020-09-24 22:29:47,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:29:47,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-09-24 22:29:48,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 585. [2020-09-24 22:29:48,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-09-24 22:29:48,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 655 transitions. [2020-09-24 22:29:48,037 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 655 transitions. Word has length 172 [2020-09-24 22:29:48,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:29:48,037 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 655 transitions. [2020-09-24 22:29:48,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:29:48,038 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 655 transitions. [2020-09-24 22:29:48,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 22:29:48,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:29:48,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:29:48,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:29:48,042 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:29:48,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:29:48,042 INFO L82 PathProgramCache]: Analyzing trace with hash -254126211, now seen corresponding path program 1 times [2020-09-24 22:29:48,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:29:48,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802752134] [2020-09-24 22:29:48,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:29:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 22:29:48,109 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 22:29:48,110 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 22:29:48,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:29:48,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:29:48 BoogieIcfgContainer [2020-09-24 22:29:48,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:29:48,147 INFO L168 Benchmark]: Toolchain (without parser) took 32346.72 ms. Allocated memory was 137.9 MB in the beginning and 610.3 MB in the end (delta: 472.4 MB). Free memory was 100.5 MB in the beginning and 124.5 MB in the end (delta: -23.9 MB). Peak memory consumption was 448.5 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:48,148 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 22:29:48,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.46 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 172.0 MB in the end (delta: -72.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:48,150 INFO L168 Benchmark]: Boogie Preprocessor took 104.62 ms. Allocated memory is still 201.9 MB. Free memory was 172.0 MB in the beginning and 167.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:48,151 INFO L168 Benchmark]: RCFGBuilder took 1486.90 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 167.7 MB in the beginning and 177.6 MB in the end (delta: -9.9 MB). Peak memory consumption was 88.6 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:48,152 INFO L168 Benchmark]: TraceAbstraction took 30051.59 ms. Allocated memory was 232.3 MB in the beginning and 610.3 MB in the end (delta: 378.0 MB). Free memory was 177.6 MB in the beginning and 124.5 MB in the end (delta: 53.2 MB). Peak memory consumption was 431.2 MB. Max. memory is 7.1 GB. [2020-09-24 22:29:48,156 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 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 693.46 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 172.0 MB in the end (delta: -72.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.62 ms. Allocated memory is still 201.9 MB. Free memory was 172.0 MB in the beginning and 167.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1486.90 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 167.7 MB in the beginning and 177.6 MB in the end (delta: -9.9 MB). Peak memory consumption was 88.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30051.59 ms. Allocated memory was 232.3 MB in the beginning and 610.3 MB in the end (delta: 378.0 MB). Free memory was 177.6 MB in the beginning and 124.5 MB in the end (delta: 53.2 MB). Peak memory consumption was 431.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L675] int waterLevel = 1; [L676] int methaneLevelCritical = 0; [L769] int cleanupTimeShifts = 4; [L845] int retValue_acc ; [L846] int tmp ; [L850] FCALL select_helpers() [L851] FCALL select_features() [L852] CALL, EXPR valid_product() [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] return (retValue_acc); [L852] RET, EXPR valid_product() [L852] tmp = valid_product() [L854] COND TRUE \read(tmp) [L856] FCALL setup() [L857] CALL runTest() [L836] CALL test() [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 [L615] COND TRUE 1 [L617] COND TRUE splverifierCounter < 4 [L623] tmp = __VERIFIER_nondet_int() [L625] COND TRUE \read(tmp) [L627] CALL waterRise() [L693] COND TRUE waterLevel < 2 [L694] waterLevel = waterLevel + 1 [L627] RET waterRise() [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___2)) [L651] tmp___1 = __VERIFIER_nondet_int() [L653] COND TRUE \read(tmp___1) [L655] CALL stopSystem() [L582] COND FALSE !(\read(pumpRunning)) [L589] systemActive = 0 [L655] RET stopSystem() [L662] CALL timeShift() [L434] COND FALSE !(\read(pumpRunning)) [L441] COND FALSE !(\read(systemActive)) [L449] CALL __utac_acc__Specification3_spec__1() [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; [L910] CALL, EXPR isMethaneLevelCritical() [L714] int retValue_acc ; [L717] retValue_acc = methaneLevelCritical [L718] return (retValue_acc); [L910] RET, EXPR isMethaneLevelCritical() [L910] tmp = isMethaneLevelCritical() [L912] COND FALSE !(\read(tmp)) [L916] CALL, EXPR getWaterLevel() [L746] int retValue_acc ; [L749] retValue_acc = waterLevel [L750] return (retValue_acc); [L916] RET, EXPR getWaterLevel() [L916] tmp___0 = getWaterLevel() [L918] COND TRUE tmp___0 == 2 [L920] CALL, EXPR isPumpRunning() [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); [L920] RET, EXPR isPumpRunning() [L920] tmp___1 = isPumpRunning() [L922] COND FALSE !(\read(tmp___1)) [L926] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 622 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 969 SDtfs, 1140 SDslu, 869 SDs, 0 SdLazy, 2030 SolverSat, 359 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=585occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 254 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 17.4s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 246998 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...