/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:38:13,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:38:13,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:38:13,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:38:13,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:38:13,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:38:13,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:38:13,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:38:13,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:38:13,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:38:13,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:38:13,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:38:13,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:38:13,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:38:13,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:38:13,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:38:13,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:38:13,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:38:13,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:38:13,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:38:13,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:38:13,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:38:13,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:38:13,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:38:13,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:38:13,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:38:13,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:38:13,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:38:13,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:38:13,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:38:13,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:38:13,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:38:13,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:38:13,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:38:13,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:38:13,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:38:13,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:38:13,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:38:13,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:38:13,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:38:13,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:38:13,773 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 [2020-10-29 11:38:13,841 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:38:13,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:38:13,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:38:13,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:38:13,846 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:38:13,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:38:13,847 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:38:13,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:38:13,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:38:13,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:38:13,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:38:13,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:38:13,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:38:13,850 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:38:13,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:38:13,851 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:38:13,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:38:13,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:38:13,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:38:13,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:38:13,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:38:13,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:38:13,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:38:13,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:38:13,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:38:13,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:38:13,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:38:13,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:38:13,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:38:13,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:38:14,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:38:14,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:38:14,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:38:14,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:38:14,349 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:38:14,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-29 11:38:14,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f703fb0b/7cc996646d4e4df89b0a03606eb57c1b/FLAG52312ab00 [2020-10-29 11:38:15,213 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:38:15,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-29 11:38:15,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f703fb0b/7cc996646d4e4df89b0a03606eb57c1b/FLAG52312ab00 [2020-10-29 11:38:15,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f703fb0b/7cc996646d4e4df89b0a03606eb57c1b [2020-10-29 11:38:15,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:38:15,534 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:38:15,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:38:15,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:38:15,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:38:15,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:38:15" (1/1) ... [2020-10-29 11:38:15,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c2b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:15, skipping insertion in model container [2020-10-29 11:38:15,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:38:15" (1/1) ... [2020-10-29 11:38:15,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:38:15,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:38:16,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:38:16,112 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:38:16,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:38:16,237 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:38:16,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:16 WrapperNode [2020-10-29 11:38:16,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:38:16,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:38:16,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:38:16,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:38:16,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:16" (1/1) ... [2020-10-29 11:38:16,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:16" (1/1) ... [2020-10-29 11:38:16,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:16" (1/1) ... [2020-10-29 11:38:16,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:16" (1/1) ... [2020-10-29 11:38:16,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:16" (1/1) ... [2020-10-29 11:38:16,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:16" (1/1) ... [2020-10-29 11:38:16,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:16" (1/1) ... [2020-10-29 11:38:16,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:38:16,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:38:16,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:38:16,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:38:16,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:38:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:38:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:38:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:38:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:38:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:38:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:38:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:38:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:38:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:38:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:38:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:38:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:38:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:38:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-29 11:38:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-29 11:38:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:38:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:38:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:38:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:38:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:38:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:38:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:38:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:38:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:38:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:38:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:38:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-29 11:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:38:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:38:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:38:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:38:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:38:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-29 11:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-29 11:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-29 11:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:38:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:38:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:38:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:38:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:38:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:38:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:38:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:38:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:38:17,706 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:38:17,706 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:38:17,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:38:17 BoogieIcfgContainer [2020-10-29 11:38:17,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:38:17,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:38:17,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:38:17,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:38:17,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:38:15" (1/3) ... [2020-10-29 11:38:17,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c893aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:38:17, skipping insertion in model container [2020-10-29 11:38:17,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:38:16" (2/3) ... [2020-10-29 11:38:17,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c893aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:38:17, skipping insertion in model container [2020-10-29 11:38:17,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:38:17" (3/3) ... [2020-10-29 11:38:17,752 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-10-29 11:38:17,769 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:38:17,775 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:38:17,790 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:38:17,836 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:38:17,837 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:38:17,837 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:38:17,837 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:38:17,837 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:38:17,838 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:38:17,838 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:38:17,838 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:38:17,873 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-10-29 11:38:17,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 11:38:17,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:38:17,891 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] [2020-10-29 11:38:17,892 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:38:17,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:38:17,905 INFO L82 PathProgramCache]: Analyzing trace with hash 816903093, now seen corresponding path program 1 times [2020-10-29 11:38:17,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:38:17,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596767503] [2020-10-29 11:38:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:38:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:18,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:18,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:19,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:21,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:21,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 11:38:21,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:38:21,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3031 [2020-10-29 11:38:21,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:21,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:21,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:38:21,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:21,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:38:21,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 11:38:21,708 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:38:21,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:38:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:21,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:21,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:21,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:21,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:21,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-29 11:38:21,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:21,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:38:21,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:21,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:38:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:21,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:21,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:21,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:21,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:21,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:21,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:21,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:21,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:21,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:38:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:21,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:21,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:21,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:21,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:21,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:21,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:21,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:21,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:21,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:21,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:21,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:38:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:21,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:21,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:21,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:21,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:21,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:38:21,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:21,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:21,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:21,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:38:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:21,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:21,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:21,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:21,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:21,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:21,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:21,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:21,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:21,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:21,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:21,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:21,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:38:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:21,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:21,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:21,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:21,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:21,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:21,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:21,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:21,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:21,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:21,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:21,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:21,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:38:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:21,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:21,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:21,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:21,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:21,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:21,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:21,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:21,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:21,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 11:38:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:21,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:21,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:21,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:21,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:21,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:21,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:21,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:21,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:21,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:38:21,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596767503] [2020-10-29 11:38:21,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:38:21,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:38:21,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309149892] [2020-10-29 11:38:21,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:38:21,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:38:21,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:38:21,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:38:21,990 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 4 states. [2020-10-29 11:38:22,441 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:38:24,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:38:24,560 INFO L93 Difference]: Finished difference Result 412 states and 546 transitions. [2020-10-29 11:38:24,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:38:24,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-29 11:38:24,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:38:24,579 INFO L225 Difference]: With dead ends: 412 [2020-10-29 11:38:24,580 INFO L226 Difference]: Without dead ends: 266 [2020-10-29 11:38:24,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:38:24,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-29 11:38:24,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 205. [2020-10-29 11:38:24,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-29 11:38:24,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 244 transitions. [2020-10-29 11:38:24,782 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 244 transitions. Word has length 53 [2020-10-29 11:38:24,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:38:24,783 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 244 transitions. [2020-10-29 11:38:24,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:38:24,786 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 244 transitions. [2020-10-29 11:38:24,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 11:38:24,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:38:24,796 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] [2020-10-29 11:38:24,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:38:24,796 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:38:24,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:38:24,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1626854306, now seen corresponding path program 1 times [2020-10-29 11:38:24,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:38:24,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358562380] [2020-10-29 11:38:24,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:38:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:24,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:24,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:24,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:26,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:29,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:29,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 11:38:29,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:38:29,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 11:38:29,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:29,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:29,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 11:38:29,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:29,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 11:38:29,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:30,276 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:38:30,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:38:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:30,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:30,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:30,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:30,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:30,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-29 11:38:30,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:30,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:30,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:30,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:30,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:38:30,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:30,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:38:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:30,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:30,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:30,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:30,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:30,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:38:30,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:30,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:30,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:30,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:38:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:30,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:30,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:30,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:30,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:30,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:30,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:30,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:30,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:30,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:38:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:30,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:30,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:30,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:30,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:30,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:30,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:30,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:30,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:30,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:30,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:30,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:30,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:38:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:30,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:30,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:30,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:30,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:30,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:30,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:30,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:30,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:30,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 11:38:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:30,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:30,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:30,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:38:30,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:30,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:38:30,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:30,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:30,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:30,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:30,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:38:30,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:30,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:38:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:30,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:30,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:30,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:30,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:30,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:30,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:30,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:30,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:30,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:30,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:30,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:30,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 11:38:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:30,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:30,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:30,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:30,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:30,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:38:30,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:30,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:30,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:30,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:30,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:30,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:38:30,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 11:38:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:30,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:30,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:30,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:30,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:30,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:38:30,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:30,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:38:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:30,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:30,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 11:38:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:30,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:30,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:30,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:30,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:30,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:30,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:30,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:30,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:30,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:38:30,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358562380] [2020-10-29 11:38:30,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:38:30,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:38:30,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377146344] [2020-10-29 11:38:30,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:38:30,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:38:30,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:38:30,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:38:30,557 INFO L87 Difference]: Start difference. First operand 205 states and 244 transitions. Second operand 8 states. [2020-10-29 11:38:31,174 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:38:32,620 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-29 11:38:34,020 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 206 [2020-10-29 11:38:34,553 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:38:35,007 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:38:36,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:38:36,495 INFO L93 Difference]: Finished difference Result 707 states and 969 transitions. [2020-10-29 11:38:36,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 11:38:36,496 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-10-29 11:38:36,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:38:36,504 INFO L225 Difference]: With dead ends: 707 [2020-10-29 11:38:36,504 INFO L226 Difference]: Without dead ends: 526 [2020-10-29 11:38:36,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-29 11:38:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-29 11:38:36,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 388. [2020-10-29 11:38:36,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-10-29 11:38:36,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 474 transitions. [2020-10-29 11:38:36,679 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 474 transitions. Word has length 62 [2020-10-29 11:38:36,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:38:36,680 INFO L481 AbstractCegarLoop]: Abstraction has 388 states and 474 transitions. [2020-10-29 11:38:36,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:38:36,680 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 474 transitions. [2020-10-29 11:38:36,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-29 11:38:36,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:38:36,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:38:36,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:38:36,687 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:38:36,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:38:36,687 INFO L82 PathProgramCache]: Analyzing trace with hash 855502732, now seen corresponding path program 1 times [2020-10-29 11:38:36,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:38:36,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385871934] [2020-10-29 11:38:36,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:38:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:36,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:36,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:37,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:41,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:41,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 11:38:41,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:38:41,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 11:38:41,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:41,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:41,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 11:38:41,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:41,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 11:38:41,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:42,154 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:38:42,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:38:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:42,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:42,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:42,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:42,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:42,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 11:38:42,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:42,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:42,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:42,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:38:42,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:42,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:38:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:42,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:42,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:42,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:42,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:42,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:42,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:42,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:42,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:38:42,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:38:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:42,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:42,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:42,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:42,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:42,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:42,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:42,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:42,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:42,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:42,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:42,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:42,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:38:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:42,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:42,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:42,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:42,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:42,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:38:42,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:42,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:42,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:42,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:42,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:42,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:42,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:38:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:42,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:42,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:42,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:42,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:42,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:42,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:42,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:38:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:42,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 11:38:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:42,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:42,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:42,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:42,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:42,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:38:42,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:42,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:42,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:38:42,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:38:42,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 11:38:42,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:42,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 11:38:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:42,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:42,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:42,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:38:42,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:42,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:38:42,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:42,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:38:42,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:42,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:38:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:42,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:42,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:42,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:38:42,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:42,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:38:42,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:42,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:42,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:42,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 11:38:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:42,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:42,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:42,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:42,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:42,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:38:42,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:42,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:42,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:38:42,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:42,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:42,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:42,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 11:38:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:42,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:42,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:42,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:42,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:38:42,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:42,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:38:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:38:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:38:42,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:42,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 11:38:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:38:42,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:38:42,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:38:42,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:38:42,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:38:42,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:38:42,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:38:42,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:38:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:38:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:38:42,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:38:42,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:38:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:38:42,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385871934] [2020-10-29 11:38:42,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:38:42,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 11:38:42,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733082376] [2020-10-29 11:38:42,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 11:38:42,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:38:42,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 11:38:42,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-29 11:38:42,500 INFO L87 Difference]: Start difference. First operand 388 states and 474 transitions. Second operand 11 states. [2020-10-29 11:38:43,310 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:38:44,439 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:38:46,355 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-29 11:38:46,905 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:47,348 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:48,143 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-29 11:38:48,721 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:38:49,182 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:49,647 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:38:50,258 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:38:53,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:38:53,323 INFO L93 Difference]: Finished difference Result 1050 states and 1577 transitions. [2020-10-29 11:38:53,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 11:38:53,324 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-10-29 11:38:53,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:38:53,336 INFO L225 Difference]: With dead ends: 1050 [2020-10-29 11:38:53,337 INFO L226 Difference]: Without dead ends: 758 [2020-10-29 11:38:53,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=182, Invalid=748, Unknown=0, NotChecked=0, Total=930 [2020-10-29 11:38:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-10-29 11:38:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 509. [2020-10-29 11:38:53,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 509 states. [2020-10-29 11:38:53,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 607 transitions. [2020-10-29 11:38:53,495 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 607 transitions. Word has length 70 [2020-10-29 11:38:53,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:38:53,495 INFO L481 AbstractCegarLoop]: Abstraction has 509 states and 607 transitions. [2020-10-29 11:38:53,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 11:38:53,495 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 607 transitions. [2020-10-29 11:38:53,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 11:38:53,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:38:53,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:38:53,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:38:53,500 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:38:53,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:38:53,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1167234182, now seen corresponding path program 1 times [2020-10-29 11:38:53,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:38:53,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268942119] [2020-10-29 11:38:53,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:38:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:38:53,570 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:38:53,570 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:38:53,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:38:53,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:38:53 BoogieIcfgContainer [2020-10-29 11:38:53,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:38:53,601 INFO L168 Benchmark]: Toolchain (without parser) took 38072.26 ms. Allocated memory was 151.0 MB in the beginning and 558.9 MB in the end (delta: 407.9 MB). Free memory was 125.5 MB in the beginning and 520.9 MB in the end (delta: -395.4 MB). Peak memory consumption was 277.8 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:53,602 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 151.0 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:38:53,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.42 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 104.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:53,604 INFO L168 Benchmark]: Boogie Preprocessor took 104.34 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 100.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:53,604 INFO L168 Benchmark]: RCFGBuilder took 1367.15 ms. Allocated memory is still 151.0 MB. Free memory was 100.4 MB in the beginning and 48.8 MB in the end (delta: 51.6 MB). Peak memory consumption was 52.1 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:53,605 INFO L168 Benchmark]: TraceAbstraction took 35863.27 ms. Allocated memory was 151.0 MB in the beginning and 558.9 MB in the end (delta: 407.9 MB). Free memory was 130.7 MB in the beginning and 520.9 MB in the end (delta: -390.3 MB). Peak memory consumption was 281.9 MB. Max. memory is 8.0 GB. [2020-10-29 11:38:53,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 151.0 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 699.42 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 104.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 104.34 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 100.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1367.15 ms. Allocated memory is still 151.0 MB. Free memory was 100.4 MB in the beginning and 48.8 MB in the end (delta: 51.6 MB). Peak memory consumption was 52.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 35863.27 ms. Allocated memory was 151.0 MB in the beginning and 558.9 MB in the end (delta: 407.9 MB). Free memory was 130.7 MB in the beginning and 520.9 MB in the end (delta: -390.3 MB). Peak memory consumption was 281.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L326] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L732] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L402] int retValue_acc ; [L403] int tmp ; [L407] FCALL select_helpers() [L408] FCALL select_features() [L409] CALL, EXPR valid_product() [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); [L409] RET, EXPR valid_product() [L409] tmp = valid_product() [L411] COND TRUE \read(tmp) [L413] FCALL setup() [L414] CALL runTest() [L393] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L443] COND TRUE waterLevel < 2 [L444] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) [L95] CALL stopSystem() [L278] COND FALSE !(\read(pumpRunning)) [L285] systemActive = 0 [L95] RET stopSystem() [L102] CALL timeShift() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND FALSE !(\read(systemActive)) [L145] CALL __utac_acc__Specification3_spec__1() [L293] int tmp ; [L294] int tmp___0 ; [L295] int tmp___1 ; [L299] CALL, EXPR isMethaneLevelCritical() [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); [L299] RET, EXPR isMethaneLevelCritical() [L299] tmp = isMethaneLevelCritical() [L301] COND FALSE !(\read(tmp)) [L305] CALL, EXPR getWaterLevel() [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); [L305] RET, EXPR getWaterLevel() [L305] tmp___0 = getWaterLevel() [L307] COND TRUE tmp___0 == 2 [L309] CALL, EXPR isPumpRunning() [L211] int retValue_acc ; [L214] retValue_acc = pumpRunning [L215] return (retValue_acc); [L309] RET, EXPR isPumpRunning() [L309] tmp___1 = isPumpRunning() [L311] COND FALSE !(\read(tmp___1)) [L315] CALL __automaton_fail() [L558] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product35.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 236 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 35.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 19.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 423 SDtfs, 1052 SDslu, 588 SDs, 0 SdLazy, 3086 SolverSat, 695 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 448 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 60988 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...