/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:09:27,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:09:27,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:09:27,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:09:27,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:09:27,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:09:27,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:09:27,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:09:27,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:09:27,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:09:27,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:09:27,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:09:27,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:09:27,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:09:27,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:09:27,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:09:27,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:09:27,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:09:27,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:09:27,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:09:27,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:09:27,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:09:27,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:09:27,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:09:27,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:09:27,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:09:27,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:09:27,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:09:27,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:09:27,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:09:27,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:09:27,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:09:27,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:09:27,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:09:27,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:09:27,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:09:27,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:09:27,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:09:27,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:09:27,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:09:27,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:09:27,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 07:09:27,546 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:09:27,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:09:27,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:09:27,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:09:27,548 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:09:27,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:09:27,548 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:09:27,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:09:27,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:09:27,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:09:27,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:09:27,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:09:27,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:09:27,549 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:09:27,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:09:27,550 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:09:27,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:09:27,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:09:27,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:09:27,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:09:27,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:09:27,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:09:27,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:09:27,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:09:27,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:09:27,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:09:27,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:09:27,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:09:27,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:09:27,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:09:27,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:09:27,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:09:27,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:09:27,890 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:09:27,891 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:09:27,891 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c [2020-10-14 07:09:27,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4a20a72c/e02b55e01e4d4d72b71038a41bdf8f84/FLAGf24043a8e [2020-10-14 07:09:28,511 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:09:28,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c [2020-10-14 07:09:28,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4a20a72c/e02b55e01e4d4d72b71038a41bdf8f84/FLAGf24043a8e [2020-10-14 07:09:28,812 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4a20a72c/e02b55e01e4d4d72b71038a41bdf8f84 [2020-10-14 07:09:28,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:09:28,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:09:28,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:09:28,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:09:28,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:09:28,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:09:28" (1/1) ... [2020-10-14 07:09:28,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e3fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:28, skipping insertion in model container [2020-10-14 07:09:28,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:09:28" (1/1) ... [2020-10-14 07:09:28,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:09:28,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:09:29,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:09:29,295 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:09:29,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:09:29,561 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:09:29,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:29 WrapperNode [2020-10-14 07:09:29,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:09:29,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:09:29,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:09:29,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:09:29,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:29" (1/1) ... [2020-10-14 07:09:29,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:29" (1/1) ... [2020-10-14 07:09:29,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:29" (1/1) ... [2020-10-14 07:09:29,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:29" (1/1) ... [2020-10-14 07:09:29,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:29" (1/1) ... [2020-10-14 07:09:29,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:29" (1/1) ... [2020-10-14 07:09:29,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:29" (1/1) ... [2020-10-14 07:09:29,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:09:29,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:09:29,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:09:29,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:09:29,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:09:29,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:09:29,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:09:29,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-14 07:09:29,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-14 07:09:29,745 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-14 07:09:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-14 07:09:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-14 07:09:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:09:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-14 07:09:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-14 07:09:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-14 07:09:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-14 07:09:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-14 07:09:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-14 07:09:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-14 07:09:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-14 07:09:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-14 07:09:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-14 07:09:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:09:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-14 07:09:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-14 07:09:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-14 07:09:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-14 07:09:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-14 07:09:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-14 07:09:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-14 07:09:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-14 07:09:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-14 07:09:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-14 07:09:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-14 07:09:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-14 07:09:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-14 07:09:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-14 07:09:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-14 07:09:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-14 07:09:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:09:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:09:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 07:09:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-14 07:09:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-14 07:09:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-14 07:09:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-14 07:09:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-14 07:09:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-14 07:09:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-14 07:09:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-14 07:09:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-14 07:09:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-14 07:09:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-14 07:09:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-14 07:09:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:09:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-14 07:09:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-14 07:09:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-14 07:09:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-14 07:09:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-14 07:09:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-14 07:09:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-14 07:09:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:09:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-14 07:09:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-14 07:09:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-14 07:09:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 07:09:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-14 07:09:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-14 07:09:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-14 07:09:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 07:09:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 07:09:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-14 07:09:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 07:09:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 07:09:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 07:09:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 07:09:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-14 07:09:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 07:09:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-14 07:09:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-14 07:09:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 07:09:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-14 07:09:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-14 07:09:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-14 07:09:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:09:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 07:09:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:09:30,795 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:09:30,795 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 07:09:30,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:09:30 BoogieIcfgContainer [2020-10-14 07:09:30,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:09:30,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:09:30,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:09:30,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:09:30,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:09:28" (1/3) ... [2020-10-14 07:09:30,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a29233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:09:30, skipping insertion in model container [2020-10-14 07:09:30,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:09:29" (2/3) ... [2020-10-14 07:09:30,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a29233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:09:30, skipping insertion in model container [2020-10-14 07:09:30,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:09:30" (3/3) ... [2020-10-14 07:09:30,810 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product09.cil.c [2020-10-14 07:09:30,821 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:09:30,829 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:09:30,842 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:09:30,866 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:09:30,866 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:09:30,866 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:09:30,867 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:09:30,867 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:09:30,867 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:09:30,867 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:09:30,867 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:09:30,890 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2020-10-14 07:09:30,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 07:09:30,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:09:30,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:09:30,901 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:09:30,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:09:30,908 INFO L82 PathProgramCache]: Analyzing trace with hash -243884949, now seen corresponding path program 1 times [2020-10-14 07:09:30,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:09:30,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780916967] [2020-10-14 07:09:30,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:09:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:31,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:31,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:31,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:33,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:33,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 07:09:33,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:09:33,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2138 [2020-10-14 07:09:33,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:33,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:33,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:33,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:09:33,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:33,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 07:09:33,919 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:09:33,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:09:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:33,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:33,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:33,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:33,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:33,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 07:09:33,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:33,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:34,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:34,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:34,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 07:09:34,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:09:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:34,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:34,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:34,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:34,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:34,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:09:34,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:34,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:34,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:34,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:34,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:34,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:34,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:09:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:34,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:34,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:34,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:34,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:34,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:34,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:34,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:34,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:09:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:34,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:34,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:34,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:34,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:34,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:09:34,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:34,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:34,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:34,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:34,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:34,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:34,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:09:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:34,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:34,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:34,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:34,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:34,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:34,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:34,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:34,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:34,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:34,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:34,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:34,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:09:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:34,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:34,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:34,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:34,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:34,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:09:34,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:34,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:34,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:34,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:34,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:34,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:34,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:09:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:34,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:34,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:34,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:34,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:34,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:34,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:34,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:34,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:34,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:34,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:09:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:34,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:34,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:34,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:34,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:34,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:34,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:34,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:34,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:34,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:34,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:34,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:34,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:09:34,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780916967] [2020-10-14 07:09:34,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:09:34,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 07:09:34,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299708990] [2020-10-14 07:09:34,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 07:09:34,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:09:34,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 07:09:34,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:09:34,126 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 3 states. [2020-10-14 07:09:35,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:09:35,025 INFO L93 Difference]: Finished difference Result 211 states and 284 transitions. [2020-10-14 07:09:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 07:09:35,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-14 07:09:35,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:09:35,041 INFO L225 Difference]: With dead ends: 211 [2020-10-14 07:09:35,041 INFO L226 Difference]: Without dead ends: 115 [2020-10-14 07:09:35,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:09:35,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-14 07:09:35,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 87. [2020-10-14 07:09:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-14 07:09:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2020-10-14 07:09:35,118 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 52 [2020-10-14 07:09:35,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:09:35,119 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2020-10-14 07:09:35,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 07:09:35,119 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2020-10-14 07:09:35,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 07:09:35,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:09:35,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:09:35,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:09:35,123 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:09:35,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:09:35,124 INFO L82 PathProgramCache]: Analyzing trace with hash -665178200, now seen corresponding path program 1 times [2020-10-14 07:09:35,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:09:35,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619962484] [2020-10-14 07:09:35,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:09:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:35,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:35,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:35,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:36,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:36,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 07:09:36,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:09:36,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1544 [2020-10-14 07:09:36,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:36,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:36,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 07:09:36,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:37,096 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:09:37,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:09:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:37,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:37,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:37,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:37,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 07:09:37,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:37,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:09:37,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:37,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:09:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:37,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:37,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:37,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:37,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:37,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:09:37,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:37,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:37,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:37,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:37,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:09:37,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:37,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:09:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:37,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:37,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:37,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:37,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:37,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:37,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:09:37,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:37,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:09:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:37,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:37,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:37,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:37,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:37,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:09:37,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:37,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:37,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:09:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:37,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:09:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:37,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:37,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:37,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:37,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:37,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:37,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:37,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:37,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:37,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:37,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:09:37,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:37,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:09:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:37,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:37,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:37,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:37,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:37,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:37,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:37,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:37,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:37,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:37,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:37,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:09:37,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:09:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:37,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:37,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:37,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:37,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:37,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:09:37,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:37,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:37,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:37,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 07:09:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:37,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:37,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:37,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:37,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:37,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:37,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:37,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:37,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:37,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:37,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:37,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:09:37,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619962484] [2020-10-14 07:09:37,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:09:37,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:09:37,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399486753] [2020-10-14 07:09:37,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:09:37,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:09:37,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:09:37,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:09:37,344 INFO L87 Difference]: Start difference. First operand 87 states and 101 transitions. Second operand 4 states. [2020-10-14 07:09:37,845 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:09:38,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:09:38,507 INFO L93 Difference]: Finished difference Result 178 states and 228 transitions. [2020-10-14 07:09:38,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:09:38,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-14 07:09:38,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:09:38,511 INFO L225 Difference]: With dead ends: 178 [2020-10-14 07:09:38,511 INFO L226 Difference]: Without dead ends: 115 [2020-10-14 07:09:38,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:09:38,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-14 07:09:38,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 87. [2020-10-14 07:09:38,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-14 07:09:38,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2020-10-14 07:09:38,550 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 53 [2020-10-14 07:09:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:09:38,550 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2020-10-14 07:09:38,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:09:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2020-10-14 07:09:38,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 07:09:38,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:09:38,553 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] [2020-10-14 07:09:38,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:09:38,553 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:09:38,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:09:38,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1246030397, now seen corresponding path program 1 times [2020-10-14 07:09:38,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:09:38,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1274313397] [2020-10-14 07:09:38,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:09:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:38,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:38,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:40,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:40,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 07:09:40,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:09:40,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1802 [2020-10-14 07:09:40,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:40,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 07:09:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:09:40,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:40,632 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:09:40,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:09:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:40,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:40,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:40,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:40,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:40,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 07:09:40,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:40,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:40,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:40,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:40,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:40,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:40,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:09:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:40,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:40,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:40,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:40,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:09:40,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:40,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:40,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:40,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:40,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:40,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:40,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:09:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:40,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:40,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:40,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:40,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:40,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:09:40,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:40,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:40,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:40,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:40,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:40,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:09:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:40,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:40,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:40,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:40,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:40,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:09:40,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:40,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:40,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:40,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:09:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:40,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:40,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:40,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:40,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:40,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:09:40,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:40,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:40,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:40,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 07:09:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:40,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:40,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:40,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:40,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:40,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:09:40,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:40,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:40,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:40,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:09:40,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:40,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:40,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 07:09:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:40,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:40,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:40,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:40,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:40,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:09:40,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:40,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:40,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:40,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:40,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-14 07:09:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:40,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:40,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:40,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:40,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:09:40,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:40,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:40,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:40,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 07:09:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:40,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:40,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:40,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:40,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:40,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:09:40,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:40,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:40,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:40,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:40,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:40,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:09:40,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1274313397] [2020-10-14 07:09:40,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:09:40,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:09:40,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970446467] [2020-10-14 07:09:40,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:09:40,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:09:40,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:09:40,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:09:40,735 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand 4 states. [2020-10-14 07:09:41,191 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:09:41,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:09:41,611 INFO L93 Difference]: Finished difference Result 144 states and 172 transitions. [2020-10-14 07:09:41,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:09:41,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-10-14 07:09:41,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:09:41,614 INFO L225 Difference]: With dead ends: 144 [2020-10-14 07:09:41,614 INFO L226 Difference]: Without dead ends: 99 [2020-10-14 07:09:41,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:09:41,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-14 07:09:41,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 78. [2020-10-14 07:09:41,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-14 07:09:41,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2020-10-14 07:09:41,643 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 56 [2020-10-14 07:09:41,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:09:41,643 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2020-10-14 07:09:41,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:09:41,644 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2020-10-14 07:09:41,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 07:09:41,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:09:41,645 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] [2020-10-14 07:09:41,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:09:41,646 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:09:41,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:09:41,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1049632545, now seen corresponding path program 1 times [2020-10-14 07:09:41,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:09:41,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358665177] [2020-10-14 07:09:41,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:09:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:41,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:42,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:42,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 07:09:42,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:42,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 746 [2020-10-14 07:09:42,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:42,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:09:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:42,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 07:09:42,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:42,846 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:09:42,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:09:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:42,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:42,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:42,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:42,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:42,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 07:09:42,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:42,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:42,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:42,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:43,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:09:43,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:43,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:09:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:43,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:43,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:43,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:43,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:43,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:09:43,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:43,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:09:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:43,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:09:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:43,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:43,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:43,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:43,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:43,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:43,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:43,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:43,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:43,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:43,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:09:43,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:43,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:09:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:43,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:43,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:43,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:43,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:43,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:09:43,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:43,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:43,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:43,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:43,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:09:43,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:43,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:09:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:43,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:43,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:43,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:43,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:43,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:43,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:43,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:43,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:43,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:09:43,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:43,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:09:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:43,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:43,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:43,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:09:43,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:43,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:09:43,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:43,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:43,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:43,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:09:43,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:43,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 07:09:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:43,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:43,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:43,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:43,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:43,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:43,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:43,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:43,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:09:43,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:09:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:43,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 07:09:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:43,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:43,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:43,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:43,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:43,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:09:43,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:43,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:43,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:09:43,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:09:43,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:09:43,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:43,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 07:09:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:09:43,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:09:43,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:09:43,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:09:43,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:09:43,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:09:43,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:09:43,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:09:43,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:09:43,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:09:43,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:09:43,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:09:43,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:09:43,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358665177] [2020-10-14 07:09:43,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:09:43,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:09:43,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138943780] [2020-10-14 07:09:43,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:09:43,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:09:43,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:09:43,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:09:43,143 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 7 states. [2020-10-14 07:09:43,618 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:09:44,464 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:09:44,757 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:09:45,024 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:09:45,246 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:09:45,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:09:45,499 INFO L93 Difference]: Finished difference Result 196 states and 245 transitions. [2020-10-14 07:09:45,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 07:09:45,499 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-10-14 07:09:45,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:09:45,503 INFO L225 Difference]: With dead ends: 196 [2020-10-14 07:09:45,503 INFO L226 Difference]: Without dead ends: 142 [2020-10-14 07:09:45,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:09:45,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-14 07:09:45,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 128. [2020-10-14 07:09:45,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-14 07:09:45,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2020-10-14 07:09:45,559 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 60 [2020-10-14 07:09:45,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:09:45,560 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2020-10-14 07:09:45,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:09:45,560 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2020-10-14 07:09:45,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 07:09:45,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:09:45,568 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] [2020-10-14 07:09:45,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:09:45,568 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:09:45,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:09:45,569 INFO L82 PathProgramCache]: Analyzing trace with hash -509227045, now seen corresponding path program 1 times [2020-10-14 07:09:45,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:09:45,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487033746] [2020-10-14 07:09:45,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:09:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:09:45,616 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:09:45,617 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:09:45,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:09:45,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:09:45 BoogieIcfgContainer [2020-10-14 07:09:45,654 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:09:45,656 INFO L168 Benchmark]: Toolchain (without parser) took 16832.49 ms. Allocated memory was 147.8 MB in the beginning and 495.5 MB in the end (delta: 347.6 MB). Free memory was 102.8 MB in the beginning and 124.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 325.9 MB. Max. memory is 7.1 GB. [2020-10-14 07:09:45,658 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 07:09:45,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.89 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.8 MB in the beginning and 173.0 MB in the end (delta: -70.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:09:45,666 INFO L168 Benchmark]: Boogie Preprocessor took 86.99 ms. Allocated memory is still 204.5 MB. Free memory was 173.0 MB in the beginning and 169.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-10-14 07:09:45,667 INFO L168 Benchmark]: RCFGBuilder took 1151.33 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 169.1 MB in the beginning and 198.9 MB in the end (delta: -29.7 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. [2020-10-14 07:09:45,668 INFO L168 Benchmark]: TraceAbstraction took 14852.00 ms. Allocated memory was 234.9 MB in the beginning and 495.5 MB in the end (delta: 260.6 MB). Free memory was 198.9 MB in the beginning and 124.6 MB in the end (delta: 74.3 MB). Peak memory consumption was 334.9 MB. Max. memory is 7.1 GB. [2020-10-14 07:09:45,682 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.89 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.8 MB in the beginning and 173.0 MB in the end (delta: -70.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.99 ms. Allocated memory is still 204.5 MB. Free memory was 173.0 MB in the beginning and 169.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1151.33 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 169.1 MB in the beginning and 198.9 MB in the end (delta: -29.7 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14852.00 ms. Allocated memory was 234.9 MB in the beginning and 495.5 MB in the end (delta: 260.6 MB). Free memory was 198.9 MB in the beginning and 124.6 MB in the end (delta: 74.3 MB). Peak memory consumption was 334.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L224] int pumpRunning = 0; [L225] int systemActive = 1; [L589] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L411] int retValue_acc ; [L414] retValue_acc = 1 [L415] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L154] int splverifierCounter ; [L155] int tmp ; [L156] int tmp___0 ; [L157] int tmp___1 ; [L158] int tmp___2 ; [L161] splverifierCounter = 0 [L163] COND TRUE 1 [L165] COND TRUE splverifierCounter < 4 [L171] tmp = __VERIFIER_nondet_int() [L173] COND TRUE \read(tmp) [L175] CALL waterRise() [L804] COND TRUE waterLevel < 2 [L805] waterLevel = waterLevel + 1 [L175] RET waterRise() [L181] tmp___0 = __VERIFIER_nondet_int() [L183] COND FALSE !(\read(tmp___0)) [L191] tmp___2 = __VERIFIER_nondet_int() [L193] COND TRUE \read(tmp___2) [L206] CALL timeShift() [L232] COND FALSE !(\read(pumpRunning)) [L239] COND TRUE \read(systemActive) [L241] FCALL processEnvironment() [L247] CALL __utac_acc__Specification3_spec__1() [L352] int tmp ; [L353] int tmp___0 ; [L354] int tmp___1 ; [L358] CALL, EXPR isMethaneLevelCritical() [L825] int retValue_acc ; [L828] retValue_acc = methaneLevelCritical [L829] return (retValue_acc); [L358] RET, EXPR isMethaneLevelCritical() [L358] tmp = isMethaneLevelCritical() [L360] COND FALSE !(\read(tmp)) [L364] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L364] RET, EXPR getWaterLevel() [L364] tmp___0 = getWaterLevel() [L366] COND TRUE tmp___0 == 2 [L368] CALL, EXPR isPumpRunning() [L305] int retValue_acc ; [L308] retValue_acc = pumpRunning [L309] return (retValue_acc); [L368] RET, EXPR isPumpRunning() [L368] tmp___1 = isPumpRunning() [L370] COND FALSE !(\read(tmp___1)) [L374] CALL __automaton_fail() [L148] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 204 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 313 SDtfs, 373 SDslu, 140 SDs, 0 SdLazy, 637 SolverSat, 189 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 91 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 57952 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...