/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:41:13,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:41:13,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:41:13,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:41:13,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:41:13,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:41:13,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:41:13,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:41:13,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:41:13,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:41:13,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:41:13,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:41:13,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:41:13,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:41:13,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:41:13,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:41:13,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:41:13,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:41:13,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:41:13,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:41:13,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:41:13,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:41:13,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:41:13,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:41:13,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:41:13,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:41:13,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:41:13,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:41:13,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:41:13,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:41:13,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:41:13,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:41:13,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:41:13,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:41:13,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:41:13,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:41:13,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:41:13,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:41:13,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:41:13,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:41:13,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:41:13,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 12:41:13,168 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:41:13,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:41:13,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:41:13,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:41:13,170 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:41:13,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:41:13,170 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:41:13,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:41:13,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:41:13,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:41:13,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:41:13,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:41:13,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:41:13,172 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:41:13,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:41:13,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:41:13,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:41:13,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:41:13,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:41:13,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:41:13,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:41:13,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:41:13,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:41:13,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:41:13,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:41:13,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:41:13,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:41:13,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:41:13,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:41:13,175 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:41:13,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:41:13,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:41:13,539 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:41:13,542 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:41:13,543 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:41:13,544 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-10-13 12:41:13,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f358da94b/5c79c842a4b94930a6c0209a80f20045/FLAGd13259b3e [2020-10-13 12:41:14,133 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:41:14,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-10-13 12:41:14,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f358da94b/5c79c842a4b94930a6c0209a80f20045/FLAGd13259b3e [2020-10-13 12:41:14,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f358da94b/5c79c842a4b94930a6c0209a80f20045 [2020-10-13 12:41:14,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:41:14,443 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:41:14,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:41:14,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:41:14,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:41:14,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:14" (1/1) ... [2020-10-13 12:41:14,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:14, skipping insertion in model container [2020-10-13 12:41:14,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:14" (1/1) ... [2020-10-13 12:41:14,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:41:14,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:41:15,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:41:15,060 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:41:15,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:41:15,173 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:41:15,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:15 WrapperNode [2020-10-13 12:41:15,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:41:15,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:41:15,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:41:15,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:41:15,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:15" (1/1) ... [2020-10-13 12:41:15,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:15" (1/1) ... [2020-10-13 12:41:15,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:15" (1/1) ... [2020-10-13 12:41:15,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:15" (1/1) ... [2020-10-13 12:41:15,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:15" (1/1) ... [2020-10-13 12:41:15,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:15" (1/1) ... [2020-10-13 12:41:15,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:15" (1/1) ... [2020-10-13 12:41:15,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:41:15,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:41:15,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:41:15,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:41:15,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:41:15,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:41:15,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:41:15,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:41:15,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:41:15,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:41:15,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:41:15,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:41:15,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:41:15,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:41:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:41:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:41:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:41:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:41:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:41:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:41:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:41:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:41:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:41:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:41:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:41:15,373 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:41:15,373 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:41:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:41:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:41:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:41:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:41:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-13 12:41:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-13 12:41:15,377 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:41:15,377 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:41:15,377 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:41:15,377 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:41:15,377 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:41:15,377 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:41:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:41:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:41:15,380 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:41:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:41:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:41:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:41:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:41:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:41:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:41:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:41:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:41:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:41:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:41:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:41:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:41:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:41:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:41:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:41:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:41:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:41:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:41:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:41:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:41:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:41:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:41:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:41:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:41:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:41:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:41:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:41:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:41:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:41:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-13 12:41:15,387 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-13 12:41:15,387 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:41:15,387 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:41:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:41:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:41:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:41:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:41:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:41:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:41:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:41:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:41:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:41:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:41:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:41:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:41:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:41:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:41:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:41:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:41:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:41:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:41:16,378 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:41:16,378 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:41:16,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:16 BoogieIcfgContainer [2020-10-13 12:41:16,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:41:16,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:41:16,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:41:16,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:41:16,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:41:14" (1/3) ... [2020-10-13 12:41:16,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2912cb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:16, skipping insertion in model container [2020-10-13 12:41:16,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:15" (2/3) ... [2020-10-13 12:41:16,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2912cb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:16, skipping insertion in model container [2020-10-13 12:41:16,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:16" (3/3) ... [2020-10-13 12:41:16,398 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-10-13 12:41:16,409 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:41:16,418 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:41:16,432 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:41:16,453 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:41:16,453 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:41:16,454 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:41:16,454 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:41:16,454 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:41:16,454 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:41:16,454 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:41:16,454 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:41:16,478 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2020-10-13 12:41:16,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 12:41:16,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:16,490 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] [2020-10-13 12:41:16,490 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:16,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:16,497 INFO L82 PathProgramCache]: Analyzing trace with hash 2078323826, now seen corresponding path program 1 times [2020-10-13 12:41:16,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:16,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181515693] [2020-10-13 12:41:16,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:16,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:17,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:17,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:19,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:19,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 12:41:19,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:41:19,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2387 [2020-10-13 12:41:19,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:19,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:41:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:19,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:41:19,672 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:19,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:19,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:19,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:19,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:19,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:19,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 12:41:19,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:19,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:19,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:19,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:19,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:19,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:19,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:19,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:19,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:19,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:19,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:19,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:19,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:19,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:19,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:19,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:19,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:19,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:19,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:19,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:19,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:19,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:19,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:19,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:19,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:19,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:19,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:19,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:19,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:19,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:19,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:41:19,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:19,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:19,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:19,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:19,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:19,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:19,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:19,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:19,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:19,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:19,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:19,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:19,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:19,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:19,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:19,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:19,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:41:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:19,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:19,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:19,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:19,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:19,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:19,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:19,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:19,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 12:41:19,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:41:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:19,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:19,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:19,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:19,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:19,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:19,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:19,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:19,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:41:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:19,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:19,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:19,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:19,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:19,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:19,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:19,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:19,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181515693] [2020-10-13 12:41:19,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:19,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:41:19,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579789135] [2020-10-13 12:41:19,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:41:19,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:19,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:41:19,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:41:19,892 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 3 states. [2020-10-13 12:41:21,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:21,147 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2020-10-13 12:41:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:41:21,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-13 12:41:21,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:21,163 INFO L225 Difference]: With dead ends: 272 [2020-10-13 12:41:21,164 INFO L226 Difference]: Without dead ends: 148 [2020-10-13 12:41:21,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:41:21,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-13 12:41:21,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2020-10-13 12:41:21,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-13 12:41:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-10-13 12:41:21,253 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-10-13 12:41:21,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:21,254 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-10-13 12:41:21,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:41:21,271 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-10-13 12:41:21,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 12:41:21,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:21,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:41:21,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:41:21,275 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:21,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:21,276 INFO L82 PathProgramCache]: Analyzing trace with hash 883286197, now seen corresponding path program 1 times [2020-10-13 12:41:21,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:21,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593938508] [2020-10-13 12:41:21,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:21,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:21,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:21,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:23,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:23,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 12:41:23,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:41:23,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2382 [2020-10-13 12:41:23,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:41:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:41:23,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:24,012 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:24,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:24,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:24,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:24,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:24,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:24,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 12:41:24,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:24,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:24,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:24,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:24,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:24,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:24,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:24,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:24,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:24,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:24,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:24,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:24,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:24,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:24,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:24,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:24,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:24,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:24,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:24,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:24,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:24,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:24,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:24,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:24,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:24,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:24,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:24,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:24,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:24,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:24,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:24,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:24,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:24,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:24,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:24,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:24,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:24,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:24,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:24,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:41:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:24,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:24,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:24,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:24,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:24,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:24,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:24,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:24,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:24,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:24,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:24,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:41:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:24,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:24,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:24,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:24,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:24,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:24,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:24,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:24,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:24,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:41:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:24,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:24,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:24,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:24,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:24,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:24,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:24,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:24,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:24,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593938508] [2020-10-13 12:41:24,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:24,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:41:24,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258380087] [2020-10-13 12:41:24,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:41:24,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:24,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:41:24,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:41:24,110 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2020-10-13 12:41:24,618 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:41:25,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:25,388 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2020-10-13 12:41:25,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:41:25,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-13 12:41:25,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:25,392 INFO L225 Difference]: With dead ends: 195 [2020-10-13 12:41:25,392 INFO L226 Difference]: Without dead ends: 132 [2020-10-13 12:41:25,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:41:25,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-13 12:41:25,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2020-10-13 12:41:25,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-13 12:41:25,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-10-13 12:41:25,454 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-10-13 12:41:25,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:25,454 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-10-13 12:41:25,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:41:25,455 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-10-13 12:41:25,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-13 12:41:25,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:25,458 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] [2020-10-13 12:41:25,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:41:25,458 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:25,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:25,458 INFO L82 PathProgramCache]: Analyzing trace with hash -2055351283, now seen corresponding path program 1 times [2020-10-13 12:41:25,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:25,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200809177] [2020-10-13 12:41:25,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:25,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:25,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:26,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:26,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 12:41:26,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:41:26,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1087 [2020-10-13 12:41:26,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:41:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 12:41:26,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:26,861 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:26,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:26,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:26,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:26,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:26,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:26,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-13 12:41:26,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:26,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:41:26,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:26,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:26,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:27,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:27,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:27,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:27,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:27,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:27,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:27,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:27,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:27,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:27,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:27,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:27,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:27,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:27,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:27,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:27,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:27,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:27,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:27,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:27,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:27,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:27,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:27,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:27,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:41:27,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:27,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:27,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:27,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:27,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:27,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:27,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:27,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:27,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:27,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:27,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:27,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:27,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:27,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:27,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:27,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:27,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:41:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:27,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:27,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:27,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:27,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:27,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:27,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:27,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:27,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:27,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:27,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:27,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:41:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:27,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:27,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:27,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:27,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:27,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:41:27,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:27,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:27,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:41:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:27,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:27,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:27,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:27,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:27,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:27,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:27,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:27,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:27,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:27,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:27,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:27,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200809177] [2020-10-13 12:41:27,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:27,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:41:27,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586539714] [2020-10-13 12:41:27,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:41:27,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:27,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:41:27,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:41:27,062 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 4 states. [2020-10-13 12:41:27,433 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:41:28,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:28,866 INFO L93 Difference]: Finished difference Result 306 states and 379 transitions. [2020-10-13 12:41:28,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:41:28,867 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-13 12:41:28,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:28,870 INFO L225 Difference]: With dead ends: 306 [2020-10-13 12:41:28,871 INFO L226 Difference]: Without dead ends: 224 [2020-10-13 12:41:28,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:41:28,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-13 12:41:28,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 178. [2020-10-13 12:41:28,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-13 12:41:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 213 transitions. [2020-10-13 12:41:28,948 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 213 transitions. Word has length 58 [2020-10-13 12:41:28,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:28,949 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 213 transitions. [2020-10-13 12:41:28,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:41:28,949 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 213 transitions. [2020-10-13 12:41:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 12:41:28,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:28,952 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] [2020-10-13 12:41:28,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:41:28,952 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:28,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:28,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1417899682, now seen corresponding path program 1 times [2020-10-13 12:41:28,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:28,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585992434] [2020-10-13 12:41:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:29,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:29,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:29,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 12:41:29,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:29,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 890 [2020-10-13 12:41:29,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:41:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 12:41:29,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:30,247 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:30,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:30,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:30,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:30,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:30,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:30,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:41:30,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:30,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:30,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:30,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:41:30,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:30,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:30,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:30,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:30,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:30,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:30,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:41:30,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:30,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:30,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:30,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:30,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:30,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:30,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:30,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:30,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:30,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:30,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:30,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:30,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:30,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:30,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:30,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:30,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:30,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:30,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:41:30,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:30,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:30,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:30,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:30,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:30,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:30,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:30,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:30,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:30,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:30,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:41:30,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:30,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:30,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:30,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:30,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:30,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:41:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:30,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:30,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:30,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:41:30,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:30,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:41:30,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:30,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:30,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:30,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:41:30,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:30,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:41:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:30,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:30,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:30,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:30,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:41:30,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:30,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:30,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:30,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:30,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:30,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:41:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:30,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:30,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:30,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:30,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:30,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:41:30,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:30,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:41:30,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:30,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:30,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:30,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 12:41:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:30,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:30,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:30,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:30,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:30,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:30,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:30,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:30,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585992434] [2020-10-13 12:41:30,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:30,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:41:30,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773478526] [2020-10-13 12:41:30,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:41:30,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:30,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:41:30,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:41:30,539 INFO L87 Difference]: Start difference. First operand 178 states and 213 transitions. Second operand 8 states. [2020-10-13 12:41:31,127 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:41:32,632 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:41:32,928 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:41:33,189 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:41:33,487 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:41:34,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:34,123 INFO L93 Difference]: Finished difference Result 549 states and 724 transitions. [2020-10-13 12:41:34,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 12:41:34,124 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-13 12:41:34,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:34,133 INFO L225 Difference]: With dead ends: 549 [2020-10-13 12:41:34,134 INFO L226 Difference]: Without dead ends: 395 [2020-10-13 12:41:34,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:41:34,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-10-13 12:41:34,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 331. [2020-10-13 12:41:34,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-10-13 12:41:34,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 407 transitions. [2020-10-13 12:41:34,269 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 407 transitions. Word has length 63 [2020-10-13 12:41:34,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:34,270 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 407 transitions. [2020-10-13 12:41:34,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:41:34,270 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 407 transitions. [2020-10-13 12:41:34,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 12:41:34,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:34,274 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] [2020-10-13 12:41:34,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:41:34,275 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:34,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:34,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1714463836, now seen corresponding path program 1 times [2020-10-13 12:41:34,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:34,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176769838] [2020-10-13 12:41:34,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:41:34,348 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:41:34,348 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:41:34,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:41:34,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:41:34 BoogieIcfgContainer [2020-10-13 12:41:34,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:41:34,385 INFO L168 Benchmark]: Toolchain (without parser) took 19942.32 ms. Allocated memory was 148.4 MB in the beginning and 521.1 MB in the end (delta: 372.8 MB). Free memory was 103.9 MB in the beginning and 237.7 MB in the end (delta: -133.8 MB). Peak memory consumption was 239.0 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:34,386 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 12:41:34,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.40 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 103.7 MB in the beginning and 174.8 MB in the end (delta: -71.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:34,387 INFO L168 Benchmark]: Boogie Preprocessor took 123.12 ms. Allocated memory is still 205.5 MB. Free memory was 174.8 MB in the beginning and 170.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:34,388 INFO L168 Benchmark]: RCFGBuilder took 1088.59 ms. Allocated memory was 205.5 MB in the beginning and 234.4 MB in the end (delta: 28.8 MB). Free memory was 170.2 MB in the beginning and 194.5 MB in the end (delta: -24.3 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:34,389 INFO L168 Benchmark]: TraceAbstraction took 17992.71 ms. Allocated memory was 234.4 MB in the beginning and 521.1 MB in the end (delta: 286.8 MB). Free memory was 194.5 MB in the beginning and 237.7 MB in the end (delta: -43.2 MB). Peak memory consumption was 243.6 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:34,393 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.40 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 103.7 MB in the beginning and 174.8 MB in the end (delta: -71.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.12 ms. Allocated memory is still 205.5 MB. Free memory was 174.8 MB in the beginning and 170.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1088.59 ms. Allocated memory was 205.5 MB in the beginning and 234.4 MB in the end (delta: 28.8 MB). Free memory was 170.2 MB in the beginning and 194.5 MB in the end (delta: -24.3 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17992.71 ms. Allocated memory was 234.4 MB in the beginning and 521.1 MB in the end (delta: 286.8 MB). Free memory was 194.5 MB in the beginning and 237.7 MB in the end (delta: -43.2 MB). Peak memory consumption was 243.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 442 SDtfs, 502 SDslu, 246 SDs, 0 SdLazy, 1103 SolverSat, 320 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=331occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 169 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 61414 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...