/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-b7b32d2 [2021-02-22 01:02:00,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:02:00,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:02:00,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 01:02:00,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 01:02:00,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 01:02:00,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 01:02:00,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 01:02:00,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 01:02:00,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 01:02:00,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 01:02:00,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 01:02:00,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:02:00,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:02:00,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:02:00,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:02:00,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:02:00,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:02:00,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:02:00,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:02:00,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:02:00,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:02:00,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:02:00,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:02:00,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 01:02:00,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 01:02:00,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 01:02:00,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 01:02:00,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 01:02:00,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 01:02:00,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 01:02:00,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 01:02:00,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 01:02:00,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 01:02:00,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 01:02:00,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 01:02:00,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 01:02:00,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 01:02:00,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:02:00,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:02:00,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:02:00,779 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:02:00,800 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:02:00,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:02:00,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:02:00,805 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:02:00,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:02:00,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:02:00,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:02:00,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:02:00,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:02:00,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:02:00,808 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:02:00,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:02:00,808 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:02:00,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:02:00,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:02:00,809 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:02:00,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:02:00,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:02:00,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:02:00,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:02:00,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:02:00,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:02:00,810 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:02:00,811 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:02:01,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:02:01,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:02:01,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:02:01,284 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:02:01,287 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:02:01,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2021-02-22 01:02:01,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f135680c/e56c45ad7b054da4be8d04b0532ee1b8/FLAGef69be41a [2021-02-22 01:02:02,003 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:02:02,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2021-02-22 01:02:02,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f135680c/e56c45ad7b054da4be8d04b0532ee1b8/FLAGef69be41a [2021-02-22 01:02:02,311 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f135680c/e56c45ad7b054da4be8d04b0532ee1b8 [2021-02-22 01:02:02,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:02:02,331 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:02:02,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:02:02,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:02:02,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:02:02,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:02:02" (1/1) ... [2021-02-22 01:02:02,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e1d3f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:02:02, skipping insertion in model container [2021-02-22 01:02:02,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:02:02" (1/1) ... [2021-02-22 01:02:02,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:02:02,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:02:02,597 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] [2021-02-22 01:02:02,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:02:02,802 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:02:02,828 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] [2021-02-22 01:02:02,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:02:02,941 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:02:02,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:02:02 WrapperNode [2021-02-22 01:02:02,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:02:02,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:02:02,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:02:02,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:02:02,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:02:02" (1/1) ... [2021-02-22 01:02:02,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:02:02" (1/1) ... [2021-02-22 01:02:03,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:02:02" (1/1) ... [2021-02-22 01:02:03,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:02:02" (1/1) ... [2021-02-22 01:02:03,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:02:02" (1/1) ... [2021-02-22 01:02:03,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:02:02" (1/1) ... [2021-02-22 01:02:03,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:02:02" (1/1) ... [2021-02-22 01:02:03,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:02:03,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:02:03,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:02:03,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:02:03,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:02:02" (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 [2021-02-22 01:02:03,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:02:03,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:02:03,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 01:02:03,251 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:02:03,251 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 01:02:03,252 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 01:02:03,252 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 01:02:03,252 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 01:02:03,252 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 01:02:03,253 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 01:02:03,253 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 01:02:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 01:02:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 01:02:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 01:02:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 01:02:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 01:02:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 01:02:03,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 01:02:03,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 01:02:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 01:02:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 01:02:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 01:02:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 01:02:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 01:02:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2021-02-22 01:02:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 01:02:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 01:02:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 01:02:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 01:02:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 01:02:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-22 01:02:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-22 01:02:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 01:02:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 01:02:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 01:02:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 01:02:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:02:03,261 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:02:03,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:02:03,262 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:02:03,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:02:03,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:02:03,262 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 01:02:03,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 01:02:03,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 01:02:03,263 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 01:02:03,263 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 01:02:03,263 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 01:02:03,263 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 01:02:03,263 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 01:02:03,263 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 01:02:03,263 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 01:02:03,264 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 01:02:03,264 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 01:02:03,264 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 01:02:03,264 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 01:02:03,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 01:02:03,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 01:02:03,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 01:02:03,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:02:03,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 01:02:03,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 01:02:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:02:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 01:02:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 01:02:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:02:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 01:02:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 01:02:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 01:02:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-22 01:02:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 01:02:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 01:02:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 01:02:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 01:02:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 01:02:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 01:02:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 01:02:03,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-22 01:02:03,269 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 01:02:03,269 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2021-02-22 01:02:03,269 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 01:02:03,269 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 01:02:03,270 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 01:02:03,270 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 01:02:03,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:02:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:02:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:02:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:02:04,879 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:02:04,880 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 01:02:04,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:02:04 BoogieIcfgContainer [2021-02-22 01:02:04,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:02:04,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:02:04,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:02:04,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:02:04,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:02:02" (1/3) ... [2021-02-22 01:02:04,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42dbc191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:02:04, skipping insertion in model container [2021-02-22 01:02:04,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:02:02" (2/3) ... [2021-02-22 01:02:04,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42dbc191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:02:04, skipping insertion in model container [2021-02-22 01:02:04,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:02:04" (3/3) ... [2021-02-22 01:02:04,895 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2021-02-22 01:02:04,902 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:02:04,908 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:02:04,927 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:02:04,951 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:02:04,951 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:02:04,951 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:02:04,951 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:02:04,952 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:02:04,952 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:02:04,952 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:02:04,952 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:02:04,975 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states. [2021-02-22 01:02:04,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-22 01:02:04,995 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:02:04,996 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] [2021-02-22 01:02:04,997 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:02:05,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:02:05,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1515267136, now seen corresponding path program 1 times [2021-02-22 01:02:05,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:02:05,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627236859] [2021-02-22 01:02:05,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:02:05,097 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:02:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:05,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:05,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:05,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:05,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:05,759 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:02:05,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:02:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:05,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:05,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:05,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:02:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:05,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:05,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:05,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:02:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:05,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:05,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:05,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:02:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:05,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:05,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:05,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:02:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:05,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:05,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:05,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 01:02:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:05,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:05,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:05,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:02:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:05,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:05,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:05,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-22 01:02:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:05,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:05,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:02:05,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627236859] [2021-02-22 01:02:05,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:02:05,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 01:02:05,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62646970] [2021-02-22 01:02:06,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 01:02:06,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:02:06,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 01:02:06,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:02:06,029 INFO L87 Difference]: Start difference. First operand 278 states. Second operand 3 states. [2021-02-22 01:02:07,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:02:07,530 INFO L93 Difference]: Finished difference Result 380 states and 454 transitions. [2021-02-22 01:02:07,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 01:02:07,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-22 01:02:07,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:02:07,559 INFO L225 Difference]: With dead ends: 380 [2021-02-22 01:02:07,560 INFO L226 Difference]: Without dead ends: 248 [2021-02-22 01:02:07,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:02:07,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-02-22 01:02:07,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 210. [2021-02-22 01:02:07,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2021-02-22 01:02:07,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 224 transitions. [2021-02-22 01:02:07,763 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 224 transitions. Word has length 158 [2021-02-22 01:02:07,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:02:07,767 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 224 transitions. [2021-02-22 01:02:07,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 01:02:07,767 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 224 transitions. [2021-02-22 01:02:07,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-22 01:02:07,780 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:02:07,781 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] [2021-02-22 01:02:07,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:02:07,781 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:02:07,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:02:07,783 INFO L82 PathProgramCache]: Analyzing trace with hash 504407249, now seen corresponding path program 1 times [2021-02-22 01:02:07,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:02:07,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777357804] [2021-02-22 01:02:07,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:02:07,791 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:02:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:07,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:07,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:07,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:07,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:07,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:07,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:08,276 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:02:08,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:02:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:08,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:08,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:08,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:02:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:08,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:08,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:08,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:02:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:08,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:08,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:08,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:02:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:08,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:08,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:08,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:02:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:08,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:08,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:08,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-22 01:02:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:08,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:08,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:08,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 01:02:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:08,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:08,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:08,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-22 01:02:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:08,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:08,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:02:08,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777357804] [2021-02-22 01:02:08,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:02:08,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:02:08,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54017389] [2021-02-22 01:02:08,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:02:08,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:02:08,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:02:08,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:02:08,440 INFO L87 Difference]: Start difference. First operand 210 states and 224 transitions. Second operand 4 states. [2021-02-22 01:02:09,320 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:02:10,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:02:10,021 INFO L93 Difference]: Finished difference Result 292 states and 324 transitions. [2021-02-22 01:02:10,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:02:10,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-22 01:02:10,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:02:10,025 INFO L225 Difference]: With dead ends: 292 [2021-02-22 01:02:10,025 INFO L226 Difference]: Without dead ends: 231 [2021-02-22 01:02:10,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:02:10,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-02-22 01:02:10,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 200. [2021-02-22 01:02:10,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-22 01:02:10,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 211 transitions. [2021-02-22 01:02:10,121 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 211 transitions. Word has length 159 [2021-02-22 01:02:10,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:02:10,123 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 211 transitions. [2021-02-22 01:02:10,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:02:10,124 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 211 transitions. [2021-02-22 01:02:10,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-22 01:02:10,126 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:02:10,126 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] [2021-02-22 01:02:10,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:02:10,131 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:02:10,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:02:10,132 INFO L82 PathProgramCache]: Analyzing trace with hash -15522646, now seen corresponding path program 1 times [2021-02-22 01:02:10,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:02:10,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463077981] [2021-02-22 01:02:10,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:02:10,146 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:02:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:10,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:10,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:10,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:10,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:10,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:02:10,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:10,776 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:02:10,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:02:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:10,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:10,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:02:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:10,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:10,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:02:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:10,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:10,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:02:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:10,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:10,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:02:10,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:02:10,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:02:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:10,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:10,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 01:02:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:10,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:10,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-22 01:02:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:10,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:10,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-22 01:02:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:10,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:10,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-22 01:02:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:10,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:10,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:02:10,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463077981] [2021-02-22 01:02:10,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:02:10,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 01:02:10,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937904862] [2021-02-22 01:02:10,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 01:02:10,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:02:10,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 01:02:10,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 01:02:10,989 INFO L87 Difference]: Start difference. First operand 200 states and 211 transitions. Second operand 10 states. [2021-02-22 01:02:11,599 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:02:12,014 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:02:12,388 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 01:02:12,769 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:02:13,136 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:02:13,481 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:02:14,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:02:14,729 INFO L93 Difference]: Finished difference Result 338 states and 386 transitions. [2021-02-22 01:02:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 01:02:14,730 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-22 01:02:14,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:02:14,734 INFO L225 Difference]: With dead ends: 338 [2021-02-22 01:02:14,735 INFO L226 Difference]: Without dead ends: 253 [2021-02-22 01:02:14,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-22 01:02:14,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-02-22 01:02:14,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 200. [2021-02-22 01:02:14,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-22 01:02:14,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 210 transitions. [2021-02-22 01:02:14,847 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 210 transitions. Word has length 172 [2021-02-22 01:02:14,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:02:14,849 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 210 transitions. [2021-02-22 01:02:14,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 01:02:14,849 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 210 transitions. [2021-02-22 01:02:14,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-22 01:02:14,851 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:02:14,852 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] [2021-02-22 01:02:14,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:02:14,852 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:02:14,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:02:14,853 INFO L82 PathProgramCache]: Analyzing trace with hash 460964760, now seen corresponding path program 1 times [2021-02-22 01:02:14,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:02:14,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829586028] [2021-02-22 01:02:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:02:14,858 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:02:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:14,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:14,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:14,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:14,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:14,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:14,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:14,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:14,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:14,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:14,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:14,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:14,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:14,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:14,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:14,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:14,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:15,282 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:02:15,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:02:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:15,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:15,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:02:15,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:02:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:15,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:15,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:02:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:15,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:15,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:02:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:15,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:15,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:02:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:15,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:15,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 01:02:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:15,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:15,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:02:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:15,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:15,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-22 01:02:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:15,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:15,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-22 01:02:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:15,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:15,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:15,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:15,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-22 01:02:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:15,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:15,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:15,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:02:15,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829586028] [2021-02-22 01:02:15,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:02:15,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 01:02:15,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415860990] [2021-02-22 01:02:15,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 01:02:15,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:02:15,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 01:02:15,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 01:02:15,506 INFO L87 Difference]: Start difference. First operand 200 states and 210 transitions. Second operand 9 states. [2021-02-22 01:02:16,107 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:02:17,562 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:02:18,000 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:02:18,400 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:02:18,814 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:02:19,183 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:02:19,606 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:02:19,974 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:02:20,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:02:20,466 INFO L93 Difference]: Finished difference Result 430 states and 501 transitions. [2021-02-22 01:02:20,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-22 01:02:20,467 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2021-02-22 01:02:20,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:02:20,470 INFO L225 Difference]: With dead ends: 430 [2021-02-22 01:02:20,470 INFO L226 Difference]: Without dead ends: 345 [2021-02-22 01:02:20,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-22 01:02:20,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-02-22 01:02:20,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 275. [2021-02-22 01:02:20,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2021-02-22 01:02:20,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 297 transitions. [2021-02-22 01:02:20,591 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 297 transitions. Word has length 175 [2021-02-22 01:02:20,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:02:20,592 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 297 transitions. [2021-02-22 01:02:20,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 01:02:20,592 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 297 transitions. [2021-02-22 01:02:20,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-22 01:02:20,595 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:02:20,595 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] [2021-02-22 01:02:20,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:02:20,595 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:02:20,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:02:20,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1456520223, now seen corresponding path program 1 times [2021-02-22 01:02:20,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:02:20,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887720559] [2021-02-22 01:02:20,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:02:20,600 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:02:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:20,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:20,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:20,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:20,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:20,984 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:02:20,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:02:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:21,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:21,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:02:21,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:02:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:21,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:21,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:02:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:21,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:21,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:02:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:21,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:21,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:02:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:21,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:21,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 01:02:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:21,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:21,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 01:02:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:21,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:21,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-22 01:02:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:21,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:21,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-22 01:02:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:21,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:21,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-22 01:02:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:21,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:21,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-22 01:02:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:02:21,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:02:21,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:02:21,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:02:21,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887720559] [2021-02-22 01:02:21,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:02:21,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 01:02:21,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535314508] [2021-02-22 01:02:21,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 01:02:21,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:02:21,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 01:02:21,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:02:21,128 INFO L87 Difference]: Start difference. First operand 275 states and 297 transitions. Second operand 6 states. [2021-02-22 01:02:21,745 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:02:22,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:02:22,698 INFO L93 Difference]: Finished difference Result 423 states and 485 transitions. [2021-02-22 01:02:22,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-22 01:02:22,699 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2021-02-22 01:02:22,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:02:22,702 INFO L225 Difference]: With dead ends: 423 [2021-02-22 01:02:22,702 INFO L226 Difference]: Without dead ends: 327 [2021-02-22 01:02:22,703 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 [2021-02-22 01:02:22,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-02-22 01:02:22,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 261. [2021-02-22 01:02:22,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2021-02-22 01:02:22,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 276 transitions. [2021-02-22 01:02:22,808 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 276 transitions. Word has length 180 [2021-02-22 01:02:22,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:02:22,809 INFO L480 AbstractCegarLoop]: Abstraction has 261 states and 276 transitions. [2021-02-22 01:02:22,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 01:02:22,809 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 276 transitions. [2021-02-22 01:02:22,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-22 01:02:22,812 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:02:22,812 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] [2021-02-22 01:02:22,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:02:22,812 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:02:22,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:02:22,813 INFO L82 PathProgramCache]: Analyzing trace with hash 456942003, now seen corresponding path program 1 times [2021-02-22 01:02:22,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:02:22,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79578201] [2021-02-22 01:02:22,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:02:22,816 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:02:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:02:22,889 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:02:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:02:22,961 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:02:23,183 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 01:02:23,183 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 01:02:23,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 01:02:23,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:02:23 BoogieIcfgContainer [2021-02-22 01:02:23,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:02:23,231 INFO L168 Benchmark]: Toolchain (without parser) took 20913.33 ms. Allocated memory was 151.0 MB in the beginning and 377.5 MB in the end (delta: 226.5 MB). Free memory was 127.3 MB in the beginning and 233.9 MB in the end (delta: -106.6 MB). Peak memory consumption was 120.2 MB. Max. memory is 8.0 GB. [2021-02-22 01:02:23,232 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:02:23,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.91 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 106.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:02:23,236 INFO L168 Benchmark]: Boogie Preprocessor took 168.68 ms. Allocated memory is still 151.0 MB. Free memory was 106.0 MB in the beginning and 102.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-22 01:02:23,240 INFO L168 Benchmark]: RCFGBuilder took 1769.29 ms. Allocated memory is still 151.0 MB. Free memory was 102.3 MB in the beginning and 99.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 37.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:02:23,241 INFO L168 Benchmark]: TraceAbstraction took 18345.89 ms. Allocated memory was 151.0 MB in the beginning and 377.5 MB in the end (delta: 226.5 MB). Free memory was 99.1 MB in the beginning and 233.9 MB in the end (delta: -134.8 MB). Peak memory consumption was 91.7 MB. Max. memory is 8.0 GB. [2021-02-22 01:02:23,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 605.91 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 106.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 168.68 ms. Allocated memory is still 151.0 MB. Free memory was 106.0 MB in the beginning and 102.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1769.29 ms. Allocated memory is still 151.0 MB. Free memory was 102.3 MB in the beginning and 99.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 37.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18345.89 ms. Allocated memory was 151.0 MB in the beginning and 377.5 MB in the end (delta: 226.5 MB). Free memory was 99.1 MB in the beginning and 233.9 MB in the end (delta: -134.8 MB). Peak memory consumption was 91.7 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: 18.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.4s, 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, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 7.4s 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: 0.6s 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...