/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:27:14,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:27:14,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:27:14,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:27:14,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:27:14,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:27:14,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:27:14,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:27:14,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:27:14,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:27:14,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:27:14,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:27:14,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:27:14,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:27:14,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:27:14,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:27:14,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:27:14,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:27:14,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:27:14,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:27:14,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:27:14,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:27:14,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:27:14,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:27:14,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:27:14,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:27:14,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:27:14,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:27:14,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:27:14,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:27:14,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:27:14,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:27:14,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:27:14,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:27:14,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:27:14,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:27:14,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:27:14,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:27:14,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:27:14,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:27:14,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:27:14,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:27:14,618 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:27:14,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:27:14,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:27:14,623 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:27:14,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:27:14,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:27:14,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:27:14,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:27:14,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:27:14,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:27:14,627 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:27:14,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:27:14,627 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:27:14,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:27:14,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:27:14,628 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:27:14,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:27:14,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:27:14,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:27:14,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:27:14,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:27:14,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:27:14,630 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:27:14,630 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:27:15,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:27:15,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:27:15,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:27:15,111 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:27:15,111 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:27:15,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2021-02-24 03:27:15,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75f76328/638e45eb3ccc4a7b8a70eece2e8ba525/FLAG2a230c664 [2021-02-24 03:27:15,888 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:27:15,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2021-02-24 03:27:15,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75f76328/638e45eb3ccc4a7b8a70eece2e8ba525/FLAG2a230c664 [2021-02-24 03:27:16,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75f76328/638e45eb3ccc4a7b8a70eece2e8ba525 [2021-02-24 03:27:16,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:27:16,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:27:16,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:27:16,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:27:16,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:27:16,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:27:16" (1/1) ... [2021-02-24 03:27:16,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29eeb978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:16, skipping insertion in model container [2021-02-24 03:27:16,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:27:16" (1/1) ... [2021-02-24 03:27:16,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:27:16,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:27:16,597 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c[3019,3032] [2021-02-24 03:27:16,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:27:16,771 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:27:16,796 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c[3019,3032] [2021-02-24 03:27:16,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:27:16,893 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:27:16,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:16 WrapperNode [2021-02-24 03:27:16,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:27:16,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:27:16,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:27:16,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:27:16,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:16" (1/1) ... [2021-02-24 03:27:16,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:16" (1/1) ... [2021-02-24 03:27:16,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:16" (1/1) ... [2021-02-24 03:27:16,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:16" (1/1) ... [2021-02-24 03:27:16,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:16" (1/1) ... [2021-02-24 03:27:16,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:16" (1/1) ... [2021-02-24 03:27:17,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:16" (1/1) ... [2021-02-24 03:27:17,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:27:17,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:27:17,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:27:17,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:27:17,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-02-24 03:27:17,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:27:17,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:27:17,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:27:17,146 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:27:17,146 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:27:17,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:27:17,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:27:17,147 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:27:17,147 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:27:17,147 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:27:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:27:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:27:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:27:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:27:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:27:17,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:27:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:27:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:27:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:27:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:27:17,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:27:17,150 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:27:17,150 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:27:17,150 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:27:17,150 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2021-02-24 03:27:17,150 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:27:17,151 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:27:17,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:27:17,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:27:17,151 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:27:17,151 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-24 03:27:17,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:27:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:27:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:27:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:27:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:27:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:27:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:27:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:27:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:27:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:27:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:27:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:27:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:27:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:27:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:27:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:27:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:27:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:27:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:27:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:27:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:27:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:27:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:27:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:27:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:27:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:27:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:27:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:27:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:27:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:27:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:27:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:27:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:27:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:27:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:27:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:27:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:27:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:27:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-24 03:27:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:27:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:27:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:27:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:27:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:27:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:27:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:27:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:27:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:27:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2021-02-24 03:27:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:27:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:27:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:27:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:27:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:27:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:27:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:27:17,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:27:18,758 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:27:18,758 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:27:18,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:27:18 BoogieIcfgContainer [2021-02-24 03:27:18,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:27:18,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:27:18,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:27:18,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:27:18,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:27:16" (1/3) ... [2021-02-24 03:27:18,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac3b325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:27:18, skipping insertion in model container [2021-02-24 03:27:18,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:16" (2/3) ... [2021-02-24 03:27:18,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac3b325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:27:18, skipping insertion in model container [2021-02-24 03:27:18,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:27:18" (3/3) ... [2021-02-24 03:27:18,774 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2021-02-24 03:27:18,782 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:27:18,789 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:27:18,810 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:27:18,839 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:27:18,840 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:27:18,840 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:27:18,840 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:27:18,840 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:27:18,840 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:27:18,840 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:27:18,841 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:27:18,864 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states. [2021-02-24 03:27:18,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-24 03:27:18,885 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:18,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:27:18,886 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:18,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:18,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1515267136, now seen corresponding path program 1 times [2021-02-24 03:27:18,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:18,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262561836] [2021-02-24 03:27:18,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:18,983 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:19,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:19,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:19,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:19,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:19,628 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:19,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:19,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:19,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:19,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:19,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:19,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:19,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:19,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:19,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:19,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:19,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:19,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:19,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:19,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:19,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:19,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:27:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:19,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:19,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:19,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:27:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:19,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:19,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:19,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:27:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:19,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:19,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:19,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262561836] [2021-02-24 03:27:19,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:19,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:27:19,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701412716] [2021-02-24 03:27:19,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:27:19,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:19,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:27:19,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:27:19,926 INFO L87 Difference]: Start difference. First operand 278 states. Second operand 3 states. [2021-02-24 03:27:21,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:21,448 INFO L93 Difference]: Finished difference Result 380 states and 454 transitions. [2021-02-24 03:27:21,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:27:21,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-24 03:27:21,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:21,465 INFO L225 Difference]: With dead ends: 380 [2021-02-24 03:27:21,466 INFO L226 Difference]: Without dead ends: 248 [2021-02-24 03:27:21,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:27:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-02-24 03:27:21,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 210. [2021-02-24 03:27:21,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2021-02-24 03:27:21,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 224 transitions. [2021-02-24 03:27:21,620 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 224 transitions. Word has length 158 [2021-02-24 03:27:21,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:21,621 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 224 transitions. [2021-02-24 03:27:21,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:27:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 224 transitions. [2021-02-24 03:27:21,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-24 03:27:21,626 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:21,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:27:21,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:27:21,627 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:21,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:21,628 INFO L82 PathProgramCache]: Analyzing trace with hash 504407249, now seen corresponding path program 1 times [2021-02-24 03:27:21,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:21,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321032839] [2021-02-24 03:27:21,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:21,634 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:21,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:21,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:21,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:21,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:21,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:21,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:22,154 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:22,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:22,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:22,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:22,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:22,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:22,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:22,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:22,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:22,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:22,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:22,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:22,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:22,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:22,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:22,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:22,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-24 03:27:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:22,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:22,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:22,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:27:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:22,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:22,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:22,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 03:27:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:22,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:22,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:22,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:22,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321032839] [2021-02-24 03:27:22,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:22,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:27:22,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035468598] [2021-02-24 03:27:22,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:27:22,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:22,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:27:22,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:27:22,285 INFO L87 Difference]: Start difference. First operand 210 states and 224 transitions. Second operand 4 states. [2021-02-24 03:27:23,077 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:27:23,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:23,784 INFO L93 Difference]: Finished difference Result 292 states and 324 transitions. [2021-02-24 03:27:23,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:27:23,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-24 03:27:23,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:23,788 INFO L225 Difference]: With dead ends: 292 [2021-02-24 03:27:23,788 INFO L226 Difference]: Without dead ends: 231 [2021-02-24 03:27:23,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 03:27:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-02-24 03:27:23,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 200. [2021-02-24 03:27:23,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-24 03:27:23,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 211 transitions. [2021-02-24 03:27:23,922 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 211 transitions. Word has length 159 [2021-02-24 03:27:23,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:23,923 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 211 transitions. [2021-02-24 03:27:23,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:27:23,923 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 211 transitions. [2021-02-24 03:27:23,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-24 03:27:23,926 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:23,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:27:23,927 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:27:23,927 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:23,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:23,927 INFO L82 PathProgramCache]: Analyzing trace with hash -15522646, now seen corresponding path program 1 times [2021-02-24 03:27:23,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:23,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [205633521] [2021-02-24 03:27:23,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:23,932 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:24,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:24,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:24,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:24,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:24,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:27:24,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:24,343 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:24,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:24,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:24,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:24,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:24,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:24,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:24,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:24,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:24,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:27:24,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:27:24,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:24,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:24,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-24 03:27:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:24,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:24,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:27:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:24,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:24,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-24 03:27:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:24,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:24,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-24 03:27:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:24,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:24,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:24,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:24,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [205633521] [2021-02-24 03:27:24,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:24,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:27:24,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904369249] [2021-02-24 03:27:24,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:27:24,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:24,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:27:24,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:27:24,558 INFO L87 Difference]: Start difference. First operand 200 states and 211 transitions. Second operand 10 states. [2021-02-24 03:27:25,373 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:27:25,808 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:27:26,207 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:27:26,590 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:27,019 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:27:27,398 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:28,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:28,742 INFO L93 Difference]: Finished difference Result 338 states and 386 transitions. [2021-02-24 03:27:28,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:27:28,742 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-24 03:27:28,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:28,748 INFO L225 Difference]: With dead ends: 338 [2021-02-24 03:27:28,748 INFO L226 Difference]: Without dead ends: 253 [2021-02-24 03:27:28,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-24 03:27:28,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-02-24 03:27:28,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 200. [2021-02-24 03:27:28,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-24 03:27:28,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 210 transitions. [2021-02-24 03:27:28,858 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 210 transitions. Word has length 172 [2021-02-24 03:27:28,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:28,859 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 210 transitions. [2021-02-24 03:27:28,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:27:28,859 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 210 transitions. [2021-02-24 03:27:28,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-24 03:27:28,862 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:28,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:27:28,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:27:28,863 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:28,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:28,864 INFO L82 PathProgramCache]: Analyzing trace with hash 460964760, now seen corresponding path program 1 times [2021-02-24 03:27:28,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:28,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046526940] [2021-02-24 03:27:28,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:28,868 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:28,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:28,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:28,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:28,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:28,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:28,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:28,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:28,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:29,322 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:29,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:29,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:29,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:27:29,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:29,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:29,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:29,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:29,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:29,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:29,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:29,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:29,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-24 03:27:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:29,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:29,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:27:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:29,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:29,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-24 03:27:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:29,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:29,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-24 03:27:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:29,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:29,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:29,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:29,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-24 03:27:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:29,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:29,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:29,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:29,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046526940] [2021-02-24 03:27:29,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:29,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:27:29,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29971765] [2021-02-24 03:27:29,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:27:29,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:29,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:27:29,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:27:29,513 INFO L87 Difference]: Start difference. First operand 200 states and 210 transitions. Second operand 9 states. [2021-02-24 03:27:30,137 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:27:31,666 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:32,133 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:27:32,527 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:32,958 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:27:33,348 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:27:33,804 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:34,173 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:34,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:34,688 INFO L93 Difference]: Finished difference Result 430 states and 501 transitions. [2021-02-24 03:27:34,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 03:27:34,689 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2021-02-24 03:27:34,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:34,692 INFO L225 Difference]: With dead ends: 430 [2021-02-24 03:27:34,693 INFO L226 Difference]: Without dead ends: 345 [2021-02-24 03:27:34,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-24 03:27:34,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-02-24 03:27:34,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 275. [2021-02-24 03:27:34,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2021-02-24 03:27:34,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 297 transitions. [2021-02-24 03:27:34,813 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 297 transitions. Word has length 175 [2021-02-24 03:27:34,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:34,814 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 297 transitions. [2021-02-24 03:27:34,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:27:34,814 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 297 transitions. [2021-02-24 03:27:34,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-24 03:27:34,817 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:34,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:27:34,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:27:34,818 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:34,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:34,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1456520223, now seen corresponding path program 1 times [2021-02-24 03:27:34,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:34,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365505559] [2021-02-24 03:27:34,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:34,822 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:34,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:34,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:34,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:34,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,271 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:35,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:35,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:35,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:35,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:35,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:35,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:35,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-24 03:27:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:35,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:27:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:35,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-24 03:27:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:35,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-24 03:27:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:35,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-24 03:27:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:35,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-24 03:27:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:35,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:35,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:35,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:35,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365505559] [2021-02-24 03:27:35,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:35,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:27:35,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904096174] [2021-02-24 03:27:35,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:27:35,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:35,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:27:35,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:27:35,494 INFO L87 Difference]: Start difference. First operand 275 states and 297 transitions. Second operand 6 states. [2021-02-24 03:27:36,108 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:27:37,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:37,101 INFO L93 Difference]: Finished difference Result 423 states and 485 transitions. [2021-02-24 03:27:37,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 03:27:37,102 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2021-02-24 03:27:37,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:37,105 INFO L225 Difference]: With dead ends: 423 [2021-02-24 03:27:37,105 INFO L226 Difference]: Without dead ends: 327 [2021-02-24 03:27:37,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:27:37,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-02-24 03:27:37,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 261. [2021-02-24 03:27:37,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2021-02-24 03:27:37,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 276 transitions. [2021-02-24 03:27:37,214 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 276 transitions. Word has length 180 [2021-02-24 03:27:37,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:37,215 INFO L480 AbstractCegarLoop]: Abstraction has 261 states and 276 transitions. [2021-02-24 03:27:37,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:27:37,215 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 276 transitions. [2021-02-24 03:27:37,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-24 03:27:37,217 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:37,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:27:37,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:27:37,218 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:37,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:37,219 INFO L82 PathProgramCache]: Analyzing trace with hash 456942003, now seen corresponding path program 1 times [2021-02-24 03:27:37,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:37,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732185679] [2021-02-24 03:27:37,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:37,222 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:27:37,304 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:27:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:27:37,383 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:27:37,622 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:27:37,622 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:27:37,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:27:37,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:27:37 BoogieIcfgContainer [2021-02-24 03:27:37,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:27:37,650 INFO L168 Benchmark]: Toolchain (without parser) took 21440.94 ms. Allocated memory was 151.0 MB in the beginning and 444.6 MB in the end (delta: 293.6 MB). Free memory was 125.8 MB in the beginning and 283.3 MB in the end (delta: -157.5 MB). Peak memory consumption was 137.7 MB. Max. memory is 8.0 GB. [2021-02-24 03:27:37,650 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:27:37,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.73 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 105.2 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:27:37,651 INFO L168 Benchmark]: Boogie Preprocessor took 126.49 ms. Allocated memory is still 151.0 MB. Free memory was 105.2 MB in the beginning and 101.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:27:37,652 INFO L168 Benchmark]: RCFGBuilder took 1736.31 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 101.2 MB in the beginning and 159.1 MB in the end (delta: -57.9 MB). Peak memory consumption was 54.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:27:37,652 INFO L168 Benchmark]: TraceAbstraction took 18882.21 ms. Allocated memory was 185.6 MB in the beginning and 444.6 MB in the end (delta: 259.0 MB). Free memory was 159.1 MB in the beginning and 283.3 MB in the end (delta: -124.2 MB). Peak memory consumption was 134.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:27:37,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 665.73 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 105.2 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 126.49 ms. Allocated memory is still 151.0 MB. Free memory was 105.2 MB in the beginning and 101.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1736.31 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 101.2 MB in the beginning and 159.1 MB in the end (delta: -57.9 MB). Peak memory consumption was 54.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18882.21 ms. Allocated memory was 185.6 MB in the beginning and 444.6 MB in the end (delta: 259.0 MB). Free memory was 159.1 MB in the beginning and 283.3 MB in the end (delta: -124.2 MB). Peak memory consumption was 134.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 170]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L783] int cleanupTimeShifts = 4; [L856] int retValue_acc ; [L857] int tmp ; [L861] FCALL select_helpers() [L862] FCALL select_features() [L863] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L863] RET, EXPR valid_product() [L863] tmp = valid_product() [L865] COND TRUE \read(tmp) [L867] FCALL setup() [L868] CALL runTest() [L850] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND TRUE \read(tmp___2) [L586] CALL startSystem() [L744] systemActive = 1 [L586] RET startSystem() [L599] CALL timeShift() [L623] COND FALSE !(\read(pumpRunning)) [L630] COND TRUE \read(systemActive) [L632] FCALL processEnvironment() [L638] CALL __utac_acc__Specification3_spec__1() [L750] int tmp ; [L751] int tmp___0 ; [L752] int tmp___1 ; [L756] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L756] RET, EXPR isMethaneLevelCritical() [L756] tmp = isMethaneLevelCritical() [L758] COND FALSE !(\read(tmp)) [L762] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L762] RET, EXPR getWaterLevel() [L762] tmp___0 = getWaterLevel() [L764] COND TRUE tmp___0 == 2 [L766] CALL, EXPR isPumpRunning() [L696] int retValue_acc ; [L699] retValue_acc = pumpRunning [L700] return (retValue_acc); [L766] RET, EXPR isPumpRunning() [L766] tmp___1 = isPumpRunning() [L768] COND FALSE !(\read(tmp___1)) [L772] CALL __automaton_fail() [L170] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 600 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 960 SDtfs, 1385 SDslu, 1355 SDs, 0 SdLazy, 2115 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 258 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...