/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:56:34,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:56:34,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:56:34,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:56:34,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:56:34,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:56:34,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:56:34,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:56:34,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:56:34,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:56:34,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:56:34,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:56:34,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:56:34,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:56:34,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:56:34,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:56:34,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:56:34,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:56:34,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:56:34,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:56:34,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:56:34,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:56:34,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:56:34,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:56:34,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:56:34,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:56:34,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:56:34,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:56:34,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:56:34,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:56:34,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:56:34,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:56:34,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:56:34,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:56:34,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:56:34,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:56:34,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:56:34,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:56:34,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:56:34,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:56:34,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:56:34,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:56:34,352 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:56:34,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:56:34,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:56:34,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:56:34,355 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:56:34,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:56:34,355 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:56:34,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:56:34,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:56:34,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:56:34,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:56:34,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:56:34,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:56:34,358 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:56:34,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:56:34,359 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:56:34,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:56:34,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:56:34,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:56:34,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:56:34,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:56:34,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:56:34,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:56:34,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:56:34,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:56:34,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:56:34,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:56:34,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:56:34,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:56:34,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 16:56:34,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:56:34,811 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:56:34,815 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:56:34,817 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:56:34,817 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:56:34,819 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product05.cil.c [2020-09-24 16:56:34,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/251ae961f/2ed18144f04644db9b13b58739ffd030/FLAG249ed04bd [2020-09-24 16:56:35,508 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:56:35,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product05.cil.c [2020-09-24 16:56:35,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/251ae961f/2ed18144f04644db9b13b58739ffd030/FLAG249ed04bd [2020-09-24 16:56:35,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/251ae961f/2ed18144f04644db9b13b58739ffd030 [2020-09-24 16:56:35,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:56:35,776 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:56:35,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:56:35,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:56:35,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:56:35,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:56:35" (1/1) ... [2020-09-24 16:56:35,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:35, skipping insertion in model container [2020-09-24 16:56:35,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:56:35" (1/1) ... [2020-09-24 16:56:35,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:56:35,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:56:36,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:56:36,278 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:56:36,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:56:36,505 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:56:36,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:36 WrapperNode [2020-09-24 16:56:36,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:56:36,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:56:36,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:56:36,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:56:36,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:36" (1/1) ... [2020-09-24 16:56:36,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:36" (1/1) ... [2020-09-24 16:56:36,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:36" (1/1) ... [2020-09-24 16:56:36,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:36" (1/1) ... [2020-09-24 16:56:36,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:36" (1/1) ... [2020-09-24 16:56:36,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:36" (1/1) ... [2020-09-24 16:56:36,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:36" (1/1) ... [2020-09-24 16:56:36,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:56:36,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:56:36,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:56:36,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:56:36,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:56:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:56:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:56:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:56:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:56:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:56:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:56:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:56:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:56:36,715 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:56:36,716 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:56:36,716 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:56:36,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:56:36,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:56:36,716 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:56:36,716 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:56:36,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:56:36,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:56:36,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:56:36,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:56:36,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:56:36,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:56:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:56:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:56:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:56:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:56:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:56:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:56:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:56:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:56:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:56:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:56:36,720 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:56:36,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:56:36,721 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:56:36,721 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:56:36,721 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:56:36,721 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:56:36,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:56:36,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:56:36,721 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:56:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:56:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:56:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:56:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:56:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:56:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:56:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:56:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:56:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:56:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:56:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:56:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:56:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:56:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:56:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:56:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:56:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:56:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:56:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:56:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:56:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:56:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:56:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:56:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:56:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:56:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:56:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:56:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:56:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:56:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:56:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:56:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:56:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:56:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:56:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:56:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:56:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:56:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:56:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:56:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:56:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:56:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:56:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:56:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:56:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:56:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:56:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:56:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:56:37,798 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:56:37,798 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:56:37,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:56:37 BoogieIcfgContainer [2020-09-24 16:56:37,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:56:37,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:56:37,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:56:37,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:56:37,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:56:35" (1/3) ... [2020-09-24 16:56:37,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25857d45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:56:37, skipping insertion in model container [2020-09-24 16:56:37,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:56:36" (2/3) ... [2020-09-24 16:56:37,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25857d45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:56:37, skipping insertion in model container [2020-09-24 16:56:37,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:56:37" (3/3) ... [2020-09-24 16:56:37,814 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product05.cil.c [2020-09-24 16:56:37,826 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:56:37,836 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:56:37,858 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:56:37,892 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:56:37,893 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:56:37,893 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:56:37,893 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:56:37,893 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:56:37,893 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:56:37,894 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:56:37,894 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:56:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-09-24 16:56:37,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:56:37,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:56:37,935 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:56:37,935 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:56:37,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:56:37,942 INFO L82 PathProgramCache]: Analyzing trace with hash -2082682634, now seen corresponding path program 1 times [2020-09-24 16:56:37,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:56:37,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139781900] [2020-09-24 16:56:37,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:56:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:38,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:38,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:39,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:39,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:41,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:50,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:50,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:56:50,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:56:50,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12646 [2020-09-24 16:56:50,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:50,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:56:50,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 16:56:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-24 16:56:50,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:56:51,434 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:56:51,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:56:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:51,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:51,778 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:51,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:56:51,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:51,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-09-24 16:56:51,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:56:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:51,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 16:56:51,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:51,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:56:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:51,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:51,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:51,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:56:51,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:51,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:56:51,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:51,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:56:51,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:51,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:56:51,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:51,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:56:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:51,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:51,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:51,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:56:51,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:51,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:56:51,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:51,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:56:51,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:51,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:56:51,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:51,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:56:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:51,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:51,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:51,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:56:51,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:51,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:56:51,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:51,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:56:51,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:51,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:56:51,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:51,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:56:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:51,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:51,903 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:51,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:56:51,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:51,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:56:51,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:51,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:56:51,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:51,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:56:51,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:56:51,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:56:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:51,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:51,929 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:51,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:56:51,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:51,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:56:51,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:56:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:56:51,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:51,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:56:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:51,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:51,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:51,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:56:51,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:51,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:56:51,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:56:51,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:51,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:56:51,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:51,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:56:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:51,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:51,952 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:51,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:56:51,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:51,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:56:51,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:51,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:51,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:56:51,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:51,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:51,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 16:56:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:51,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:51,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:51,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:56:51,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:51,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:56:51,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:51,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:51,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:56:51,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:51,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:51,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:56:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:51,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:51,971 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:56:51,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:56:51,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:56:51,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:56:51,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:56:51,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:56:51,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:56:51,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:56:51,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:56:52,034 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:56:52,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139781900] [2020-09-24 16:56:52,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:56:52,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:56:52,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098482646] [2020-09-24 16:56:52,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:56:52,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:56:52,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:56:52,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:56:52,078 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 5 states. [2020-09-24 16:56:52,972 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:56:54,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:56:54,210 INFO L93 Difference]: Finished difference Result 419 states and 492 transitions. [2020-09-24 16:56:54,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:56:54,215 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-09-24 16:56:54,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:56:54,239 INFO L225 Difference]: With dead ends: 419 [2020-09-24 16:56:54,239 INFO L226 Difference]: Without dead ends: 273 [2020-09-24 16:56:54,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:56:54,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-24 16:56:54,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 231. [2020-09-24 16:56:54,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-24 16:56:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions. [2020-09-24 16:56:54,346 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 160 [2020-09-24 16:56:54,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:56:54,348 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions. [2020-09-24 16:56:54,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:56:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions. [2020-09-24 16:56:54,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-24 16:56:54,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:56:54,353 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:56:54,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:56:54,354 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:56:54,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:56:54,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1139082679, now seen corresponding path program 1 times [2020-09-24 16:56:54,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:56:54,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881581675] [2020-09-24 16:56:54,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:56:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:56:54,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:54,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:55,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:56:57,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:02,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:02,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-24 16:57:02,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 16:57:02,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8300 [2020-09-24 16:57:02,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:02,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:57:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-24 16:57:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 16:57:02,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,037 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:03,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:57:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,134 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:57:03,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 16:57:03,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:57:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:57:03,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:57:03,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:57:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:57:03,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:57:03,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:57:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:03,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:57:03,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:57:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:57:03,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:57:03,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:57:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:57:03,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:57:03,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:57:03,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:57:03,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:57:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:57:03,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:57:03,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:57:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:57:03,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:57:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:03,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:57:03,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:57:03,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:57:03,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:57:03,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 16:57:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:57:03,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 16:57:03,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:57:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:57:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 16:57:03,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:57:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:57:03,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:57:03,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:57:03,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:57:03,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 16:57:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,317 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:03,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:57:03,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:57:03,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:57:03,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 16:57:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:57:03,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:57:03,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:57:03,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:57:03,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:57:03,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:57:03,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:57:03,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:57:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:57:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:57:03,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:57:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:57:03,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881581675] [2020-09-24 16:57:03,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:57:03,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 16:57:03,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699583020] [2020-09-24 16:57:03,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 16:57:03,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:57:03,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 16:57:03,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-24 16:57:03,429 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 12 states. [2020-09-24 16:57:04,456 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:04,808 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:05,182 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:05,745 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:57:06,058 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:57:06,843 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:07,182 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:07,622 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:07,970 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:08,275 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:08,566 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:08,903 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:09,755 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:10,080 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:10,402 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 16:57:10,722 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:57:11,092 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:11,456 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 16:57:12,041 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:12,473 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:12,842 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:14,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:57:14,017 INFO L93 Difference]: Finished difference Result 673 states and 862 transitions. [2020-09-24 16:57:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 16:57:14,018 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 178 [2020-09-24 16:57:14,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:57:14,022 INFO L225 Difference]: With dead ends: 673 [2020-09-24 16:57:14,022 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:57:14,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=390, Invalid=1332, Unknown=0, NotChecked=0, Total=1722 [2020-09-24 16:57:14,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:57:14,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:57:14,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:57:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:57:14,030 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2020-09-24 16:57:14,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:57:14,030 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:57:14,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 16:57:14,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:57:14,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:57:14,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:57:14,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:57:14,240 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:14,417 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:14,596 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:14,774 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:14,939 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:15,095 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:15,255 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:15,411 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:15,571 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:15,730 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:15,884 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:16,038 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:16,198 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:16,355 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:16,504 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:16,662 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:16,824 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:16,983 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:17,140 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:17,303 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:17,461 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:17,618 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:17,780 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:17,938 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:18,096 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:18,253 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:18,410 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:18,567 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:18,723 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:19,110 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:19,265 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:19,423 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:19,576 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:19,732 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:19,885 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:20,042 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:20,297 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-09-24 16:57:20,441 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:57:20,593 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:20,748 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:20,901 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:21,059 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:21,207 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:21,358 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:21,515 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:21,667 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:21,819 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:21,974 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:22,126 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:22,278 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:22,435 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:22,587 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:22,735 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:22,888 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:23,045 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:23,201 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:23,353 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:23,510 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:23,667 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:23,818 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:23,975 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:24,127 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:24,279 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:24,428 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:24,575 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:24,729 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:24,882 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:25,033 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:25,190 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:25,347 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:25,499 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:25,647 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:25,794 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:57:25,951 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:26,103 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:26,254 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:57:26,406 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:57:26,563 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:57:26,815 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 195 [2020-09-24 16:57:27,074 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 195 [2020-09-24 16:57:27,321 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 195