/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:46:31,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:46:31,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:46:31,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:46:31,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:46:31,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:46:31,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:46:31,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:46:31,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:46:31,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:46:31,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:46:31,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:46:31,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:46:31,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:46:31,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:46:31,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:46:31,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:46:31,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:46:31,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:46:31,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:46:31,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:46:31,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:46:31,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:46:31,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:46:31,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:46:31,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:46:31,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:46:31,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:46:31,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:46:31,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:46:31,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:46:31,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:46:31,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:46:31,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:46:31,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:46:31,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:46:31,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:46:31,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:46:31,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:46:31,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:46:31,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:46:31,284 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 15:46:31,310 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:46:31,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:46:31,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:46:31,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:46:31,312 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:46:31,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:46:31,312 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:46:31,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:46:31,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:46:31,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:46:31,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:46:31,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:46:31,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:46:31,314 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:46:31,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:46:31,314 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:46:31,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:46:31,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:46:31,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:46:31,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:46:31,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:46:31,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:31,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:46:31,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:46:31,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:46:31,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:46:31,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:46:31,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:46:31,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:46:31,317 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:46:31,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:46:31,818 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:46:31,824 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:46:31,826 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:46:31,828 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:46:31,830 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-09-24 15:46:31,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09d6c6630/f89aa57c7b3647d4885a8f895a9584f6/FLAGbe3de6f5a [2020-09-24 15:46:32,545 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:46:32,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-09-24 15:46:32,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09d6c6630/f89aa57c7b3647d4885a8f895a9584f6/FLAGbe3de6f5a [2020-09-24 15:46:32,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09d6c6630/f89aa57c7b3647d4885a8f895a9584f6 [2020-09-24 15:46:32,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:46:32,776 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:46:32,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:32,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:46:32,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:46:32,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:32" (1/1) ... [2020-09-24 15:46:32,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50be01d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:32, skipping insertion in model container [2020-09-24 15:46:32,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:32" (1/1) ... [2020-09-24 15:46:32,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:46:32,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:46:33,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:33,416 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:46:33,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:33,535 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:46:33,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:33 WrapperNode [2020-09-24 15:46:33,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:33,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:46:33,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:46:33,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:46:33,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:33" (1/1) ... [2020-09-24 15:46:33,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:33" (1/1) ... [2020-09-24 15:46:33,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:33" (1/1) ... [2020-09-24 15:46:33,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:33" (1/1) ... [2020-09-24 15:46:33,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:33" (1/1) ... [2020-09-24 15:46:33,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:33" (1/1) ... [2020-09-24 15:46:33,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:33" (1/1) ... [2020-09-24 15:46:33,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:46:33,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:46:33,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:46:33,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:46:33,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:33" (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 15:46:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:46:33,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:46:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:46:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:46:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:46:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:46:33,712 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:46:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:46:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:46:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:46:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:46:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:46:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:46:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:46:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:46:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:46:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:46:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:46:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:46:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 15:46:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:46:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:46:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:46:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:46:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:46:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:46:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:46:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:46:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:46:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:46:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:46:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:46:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:46:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:46:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:46:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:46:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:46:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:46:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:46:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:46:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:46:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:46:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:46:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:46:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:46:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:46:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:46:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:46:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:46:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:46:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:46:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:46:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:46:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:46:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:46:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:46:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:46:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:46:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:46:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:46:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:46:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:46:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:46:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:46:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:46:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:46:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:46:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 15:46:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:46:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:46:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:46:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:46:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:46:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:46:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:46:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:46:34,913 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:46:34,914 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:46:34,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:34 BoogieIcfgContainer [2020-09-24 15:46:34,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:46:34,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:46:34,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:46:34,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:46:34,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:46:32" (1/3) ... [2020-09-24 15:46:34,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b71c14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:34, skipping insertion in model container [2020-09-24 15:46:34,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:33" (2/3) ... [2020-09-24 15:46:34,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b71c14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:34, skipping insertion in model container [2020-09-24 15:46:34,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:34" (3/3) ... [2020-09-24 15:46:34,933 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2020-09-24 15:46:34,945 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:46:34,956 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:46:34,978 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:46:35,010 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:46:35,010 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:46:35,010 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:46:35,010 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:46:35,010 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:46:35,011 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:46:35,011 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:46:35,011 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:46:35,035 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2020-09-24 15:46:35,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 15:46:35,051 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:35,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:35,053 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:35,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:35,060 INFO L82 PathProgramCache]: Analyzing trace with hash -350196146, now seen corresponding path program 1 times [2020-09-24 15:46:35,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:35,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322377620] [2020-09-24 15:46:35,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 15:46:35,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:46:35,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:46:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:35,929 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:35,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:35,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:35,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:35,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:35,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:35,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:35,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:35,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:35,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:35,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:35,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:35,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:35,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:36,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:36,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:36,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:36,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:36,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:36,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:36,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:36,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:36,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:36,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:36,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:36,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:36,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:36,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:36,128 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:36,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:36,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:36,129 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:36,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:36,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:36,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:36,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:36,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:36,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:36,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:36,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:36,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:36,135 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:36,135 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:36,135 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:36,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:36,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:36,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:36,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:36,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:36,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:36,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:36,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:36,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:36,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:36,142 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:36,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:36,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:36,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:36,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:36,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:36,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:36,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:36,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:36,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:36,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:36,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:36,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:46:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:36,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:36,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:36,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:36,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:36,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:36,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:36,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:36,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:36,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:36,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:36,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:36,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:36,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:36,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:36,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:36,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:36,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:36,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:36,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:36,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:36,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:36,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:36,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:36,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:36,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:36,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:36,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:36,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:36,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:36,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:36,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:36,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322377620] [2020-09-24 15:46:36,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:36,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:46:36,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796547608] [2020-09-24 15:46:36,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:46:36,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:36,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:46:36,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:36,227 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 3 states. [2020-09-24 15:46:37,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:37,352 INFO L93 Difference]: Finished difference Result 374 states and 448 transitions. [2020-09-24 15:46:37,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:46:37,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 15:46:37,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:37,375 INFO L225 Difference]: With dead ends: 374 [2020-09-24 15:46:37,376 INFO L226 Difference]: Without dead ends: 243 [2020-09-24 15:46:37,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:37,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-24 15:46:37,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2020-09-24 15:46:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-24 15:46:37,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 219 transitions. [2020-09-24 15:46:37,501 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 219 transitions. Word has length 153 [2020-09-24 15:46:37,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:37,502 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 219 transitions. [2020-09-24 15:46:37,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:46:37,502 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 219 transitions. [2020-09-24 15:46:37,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 15:46:37,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:37,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:37,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:46:37,509 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:37,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:37,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1301465933, now seen corresponding path program 1 times [2020-09-24 15:46:37,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:37,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748326891] [2020-09-24 15:46:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:37,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:37,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:37,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:37,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:37,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:46:37,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:37,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:46:37,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:37,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:37,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:46:37,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:46:37,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:37,953 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:37,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:37,969 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:37,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:37,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:37,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:37,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:37,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:37,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:37,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:37,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:37,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:37,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:37,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:38,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:38,016 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:38,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:38,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:38,017 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:38,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:38,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:38,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:38,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:38,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:38,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:38,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:38,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:38,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:38,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:38,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:38,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:38,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:38,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:38,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:38,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:38,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:38,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:38,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:38,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:38,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:38,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:38,027 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:38,027 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:38,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:38,028 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:38,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:38,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:38,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:38,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:38,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:38,032 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:38,033 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:38,033 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:38,033 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:38,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:38,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:38,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:38,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:38,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:38,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:38,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:38,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:38,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 15:46:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:38,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:38,038 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:38,038 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:38,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:38,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:38,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:38,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:38,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:38,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:38,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:38,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:38,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:38,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:46:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:38,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:38,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:38,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:38,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:38,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:38,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:38,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:38,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:38,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:38,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 15:46:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:38,050 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:38,050 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:38,050 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:38,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:38,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:38,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:38,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:38,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:38,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:38,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748326891] [2020-09-24 15:46:38,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:38,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:38,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261680787] [2020-09-24 15:46:38,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:38,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:38,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:38,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:38,085 INFO L87 Difference]: Start difference. First operand 205 states and 219 transitions. Second operand 4 states. [2020-09-24 15:46:38,750 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:39,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:39,364 INFO L93 Difference]: Finished difference Result 287 states and 319 transitions. [2020-09-24 15:46:39,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:39,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 15:46:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:39,372 INFO L225 Difference]: With dead ends: 287 [2020-09-24 15:46:39,372 INFO L226 Difference]: Without dead ends: 226 [2020-09-24 15:46:39,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:39,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-24 15:46:39,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 195. [2020-09-24 15:46:39,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 15:46:39,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 206 transitions. [2020-09-24 15:46:39,440 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 206 transitions. Word has length 154 [2020-09-24 15:46:39,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:39,442 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 206 transitions. [2020-09-24 15:46:39,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:39,443 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 206 transitions. [2020-09-24 15:46:39,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 15:46:39,450 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:39,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:39,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:46:39,453 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:39,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:39,454 INFO L82 PathProgramCache]: Analyzing trace with hash 351008882, now seen corresponding path program 1 times [2020-09-24 15:46:39,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:39,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008258434] [2020-09-24 15:46:39,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,553 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:46:39,554 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -42 [2020-09-24 15:46:39,554 FATAL L256 erpolLogProxyWrapper]: Difference in width: 42 [2020-09-24 15:46:39,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 15:46:39,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:46:39,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 15:46:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:46:39,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,901 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:39,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,913 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:39,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:39,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:39,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,961 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,961 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,962 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,962 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:39,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:39,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,967 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,968 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,968 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,969 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:39,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:39,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:39,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:39,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:39,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:39,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:39,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:39,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,980 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,980 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,980 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:39,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:39,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:39,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:39,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:39,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 15:46:39,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 15:46:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:39,995 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:39,996 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:39,996 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:39,996 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:39,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:39,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:39,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:39,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:46:39,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:40,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:46:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:40,004 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:40,005 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:40,005 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:40,005 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:40,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:40,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:40,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:40,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:40,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:40,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:40,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:40,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:40,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 15:46:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:40,009 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:40,009 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:40,010 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:40,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:40,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:40,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:40,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:46:40,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:40,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:40,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:40,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 15:46:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:40,014 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:40,015 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:40,015 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:40,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:40,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:40,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:40,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:40,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:40,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:40,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:40,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:40,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:40,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:40,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008258434] [2020-09-24 15:46:40,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:40,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:46:40,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531832766] [2020-09-24 15:46:40,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:46:40,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:40,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:46:40,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:40,048 INFO L87 Difference]: Start difference. First operand 195 states and 206 transitions. Second operand 5 states. [2020-09-24 15:46:40,621 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:41,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:41,293 INFO L93 Difference]: Finished difference Result 333 states and 381 transitions. [2020-09-24 15:46:41,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:46:41,293 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 15:46:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:41,297 INFO L225 Difference]: With dead ends: 333 [2020-09-24 15:46:41,297 INFO L226 Difference]: Without dead ends: 248 [2020-09-24 15:46:41,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:46:41,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-09-24 15:46:41,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 195. [2020-09-24 15:46:41,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 15:46:41,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 205 transitions. [2020-09-24 15:46:41,330 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 205 transitions. Word has length 167 [2020-09-24 15:46:41,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:41,331 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 205 transitions. [2020-09-24 15:46:41,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:46:41,331 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 205 transitions. [2020-09-24 15:46:41,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 15:46:41,333 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:41,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:41,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:46:41,334 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:41,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:41,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1432689870, now seen corresponding path program 1 times [2020-09-24 15:46:41,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:41,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713099159] [2020-09-24 15:46:41,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:41,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 15:46:41,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:46:41,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:46:41,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 15:46:41,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 15:46:41,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:41,887 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:41,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:41,945 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:41,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:41,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:41,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:41,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:41,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:41,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:46:41,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:41,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:41,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:41,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 15:46:41,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,014 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,014 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,014 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:42,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:42,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:42,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:42,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,023 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:42,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:42,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:42,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:42,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,031 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,032 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:42,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:42,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:42,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:42,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:42,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:42,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 15:46:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,072 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,072 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,073 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:42,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:42,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:46:42,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:42,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:42,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:42,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:42,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:42,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:46:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:42,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:42,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:42,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:42,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 15:46:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,105 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,105 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:42,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:46:42,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:42,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:42,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 15:46:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:42,155 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:42,155 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:42,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:42,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:42,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:42,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:42,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:42,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:42,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:42,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:42,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:42,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:42,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:42,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713099159] [2020-09-24 15:46:42,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:42,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:46:42,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873273657] [2020-09-24 15:46:42,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:46:42,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:42,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:46:42,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:46:42,224 INFO L87 Difference]: Start difference. First operand 195 states and 205 transitions. Second operand 9 states. [2020-09-24 15:46:42,939 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:44,280 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:44,568 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:44,912 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:45,227 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:45,522 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:45,822 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:46,099 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:46,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:46,751 INFO L93 Difference]: Finished difference Result 431 states and 508 transitions. [2020-09-24 15:46:46,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:46:46,752 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-24 15:46:46,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:46,756 INFO L225 Difference]: With dead ends: 431 [2020-09-24 15:46:46,756 INFO L226 Difference]: Without dead ends: 346 [2020-09-24 15:46:46,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:46:46,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-09-24 15:46:46,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 273. [2020-09-24 15:46:46,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-24 15:46:46,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 296 transitions. [2020-09-24 15:46:46,802 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 296 transitions. Word has length 170 [2020-09-24 15:46:46,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:46,803 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 296 transitions. [2020-09-24 15:46:46,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:46:46,803 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 296 transitions. [2020-09-24 15:46:46,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 15:46:46,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:46,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:46,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:46:46,806 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:46,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:46,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1340891089, now seen corresponding path program 1 times [2020-09-24 15:46:46,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:46,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996296445] [2020-09-24 15:46:46,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:46:46,903 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:46:46,903 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:46:46,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:46:46,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:46:46 BoogieIcfgContainer [2020-09-24 15:46:46,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:46:46,938 INFO L168 Benchmark]: Toolchain (without parser) took 14165.93 ms. Allocated memory was 138.9 MB in the beginning and 472.4 MB in the end (delta: 333.4 MB). Free memory was 101.2 MB in the beginning and 363.3 MB in the end (delta: -262.1 MB). Peak memory consumption was 71.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:46,938 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:46:46,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.11 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.6 MB in the beginning and 170.1 MB in the end (delta: -69.5 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:46,940 INFO L168 Benchmark]: Boogie Preprocessor took 93.80 ms. Allocated memory is still 201.9 MB. Free memory was 170.1 MB in the beginning and 166.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:46,941 INFO L168 Benchmark]: RCFGBuilder took 1292.29 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 166.1 MB in the beginning and 180.8 MB in the end (delta: -14.7 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:46,942 INFO L168 Benchmark]: TraceAbstraction took 12010.32 ms. Allocated memory was 234.4 MB in the beginning and 472.4 MB in the end (delta: 238.0 MB). Free memory was 179.4 MB in the beginning and 363.3 MB in the end (delta: -184.0 MB). Peak memory consumption was 54.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:46,946 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 760.11 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.6 MB in the beginning and 170.1 MB in the end (delta: -69.5 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.80 ms. Allocated memory is still 201.9 MB. Free memory was 170.1 MB in the beginning and 166.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1292.29 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 166.1 MB in the beginning and 180.8 MB in the end (delta: -14.7 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12010.32 ms. Allocated memory was 234.4 MB in the beginning and 472.4 MB in the end (delta: 238.0 MB). Free memory was 179.4 MB in the beginning and 363.3 MB in the end (delta: -184.0 MB). Peak memory consumption was 54.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L781] int cleanupTimeShifts = 4; [L854] int retValue_acc ; [L855] int tmp ; [L859] FCALL select_helpers() [L860] FCALL select_features() [L861] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L861] RET, EXPR valid_product() [L861] tmp = valid_product() [L863] COND TRUE \read(tmp) [L865] FCALL setup() [L866] CALL runTest() [L848] CALL test() [L543] int splverifierCounter ; [L544] int tmp ; [L545] int tmp___0 ; [L546] int tmp___1 ; [L547] int tmp___2 ; [L550] splverifierCounter = 0 [L552] COND TRUE 1 [L554] COND TRUE splverifierCounter < 4 [L560] tmp = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp) [L564] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L564] RET waterRise() [L570] tmp___0 = __VERIFIER_nondet_int() [L572] COND FALSE !(\read(tmp___0)) [L580] tmp___2 = __VERIFIER_nondet_int() [L582] COND TRUE \read(tmp___2) [L584] CALL startSystem() [L742] systemActive = 1 [L584] RET startSystem() [L597] CALL timeShift() [L621] COND FALSE !(\read(pumpRunning)) [L628] COND TRUE \read(systemActive) [L630] FCALL processEnvironment() [L636] CALL __utac_acc__Specification3_spec__1() [L748] int tmp ; [L749] int tmp___0 ; [L750] int tmp___1 ; [L754] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L754] RET, EXPR isMethaneLevelCritical() [L754] tmp = isMethaneLevelCritical() [L756] COND FALSE !(\read(tmp)) [L760] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L760] RET, EXPR getWaterLevel() [L760] tmp___0 = getWaterLevel() [L762] COND TRUE tmp___0 == 2 [L764] CALL, EXPR isPumpRunning() [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); [L764] RET, EXPR isPumpRunning() [L764] tmp___1 = isPumpRunning() [L766] COND FALSE !(\read(tmp___1)) [L770] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 591 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 760 SDtfs, 854 SDslu, 745 SDs, 0 SdLazy, 1445 SolverSat, 260 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 195 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 640 ConstructedInterpolants, 0 QuantifiedInterpolants, 243648 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...