/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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:27:20,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:27:20,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:27:20,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:27:20,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:27:20,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:27:20,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:27:20,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:27:20,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:27:20,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:27:20,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:27:20,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:27:20,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:27:20,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:27:20,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:27:20,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:27:20,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:27:20,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:27:20,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:27:20,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:27:20,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:27:20,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:27:20,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:27:20,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:27:20,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:27:20,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:27:20,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:27:20,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:27:20,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:27:20,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:27:20,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:27:20,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:27:20,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:27:20,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:27:20,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:27:20,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:27:20,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:27:20,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:27:20,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:27:20,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:27:20,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:27:20,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:27:21,006 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:27:21,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:27:21,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:27:21,012 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:27:21,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:27:21,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:27:21,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:27:21,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:27:21,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:27:21,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:27:21,014 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:27:21,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:27:21,015 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:27:21,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:27:21,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:27:21,016 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:27:21,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:27:21,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:27:21,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:27:21,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:27:21,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:27:21,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:27:21,017 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:27:21,018 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:27:21,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:27:21,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:27:21,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:27:21,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:27:21,549 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:27:21,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2021-02-24 03:27:21,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaaeb0b83/12a492947cd445c38360d85eba3a7493/FLAGa78c20b1d [2021-02-24 03:27:22,404 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:27:22,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2021-02-24 03:27:22,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaaeb0b83/12a492947cd445c38360d85eba3a7493/FLAGa78c20b1d [2021-02-24 03:27:22,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaaeb0b83/12a492947cd445c38360d85eba3a7493 [2021-02-24 03:27:22,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:27:22,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:27:22,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:27:22,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:27:22,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:27:22,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:27:22" (1/1) ... [2021-02-24 03:27:22,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9a4fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:22, skipping insertion in model container [2021-02-24 03:27:22,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:27:22" (1/1) ... [2021-02-24 03:27:22,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:27:22,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:27:23,059 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_product11.cil.c[15878,15891] [2021-02-24 03:27:23,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:27:23,098 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:27:23,170 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_product11.cil.c[15878,15891] [2021-02-24 03:27:23,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:27:23,212 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:27:23,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:23 WrapperNode [2021-02-24 03:27:23,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:27:23,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:27:23,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:27:23,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:27:23,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:23" (1/1) ... [2021-02-24 03:27:23,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:23" (1/1) ... [2021-02-24 03:27:23,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:23" (1/1) ... [2021-02-24 03:27:23,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:23" (1/1) ... [2021-02-24 03:27:23,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:23" (1/1) ... [2021-02-24 03:27:23,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:23" (1/1) ... [2021-02-24 03:27:23,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:23" (1/1) ... [2021-02-24 03:27:23,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:27:23,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:27:23,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:27:23,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:27:23,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:27:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:27:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:27:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:27:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:27:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:27:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:27:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:27:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:27:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:27:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:27:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:27:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:27:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:27:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:27:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:27:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:27:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:27:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:27:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:27:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:27:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:27:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:27:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2021-02-24 03:27:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:27:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:27:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:27:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:27:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:27:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-24 03:27:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:27:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:27:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:27:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:27:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:27:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:27:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:27:23,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:27:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:27:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:27:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:27:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:27:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:27:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:27:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:27:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:27:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:27:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:27:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:27:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:27:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:27:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:27:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:27:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:27:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:27:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:27:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:27:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:27:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:27:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:27:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:27:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:27:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:27:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:27:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:27:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:27:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:27:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:27:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:27:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:27:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:27:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:27:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:27:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:27:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:27:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:27:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:27:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:27:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:27:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:27:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:27:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:27:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-24 03:27:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:27:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2021-02-24 03:27:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:27:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:27:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:27:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:27:24,953 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:27:24,953 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:27:24,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:27:24 BoogieIcfgContainer [2021-02-24 03:27:24,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:27:24,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:27:24,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:27:24,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:27:24,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:27:22" (1/3) ... [2021-02-24 03:27:24,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a83a3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:27:24, skipping insertion in model container [2021-02-24 03:27:24,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:27:23" (2/3) ... [2021-02-24 03:27:24,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a83a3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:27:24, skipping insertion in model container [2021-02-24 03:27:24,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:27:24" (3/3) ... [2021-02-24 03:27:24,967 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2021-02-24 03:27:24,974 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:27:24,980 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:27:25,000 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:27:25,026 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:27:25,026 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:27:25,026 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:27:25,026 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:27:25,026 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:27:25,026 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:27:25,027 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:27:25,027 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:27:25,049 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states. [2021-02-24 03:27:25,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-24 03:27:25,068 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:25,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:27:25,070 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:25,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:25,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1057466646, now seen corresponding path program 1 times [2021-02-24 03:27:25,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:25,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192952274] [2021-02-24 03:27:25,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:25,166 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:25,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:25,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:25,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:25,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:25,874 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:25,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:25,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:25,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:25,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:25,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:25,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:25,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:25,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:25,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:25,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:25,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:25,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:25,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:25,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:25,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:25,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:27:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:25,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:26,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:26,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:27:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:26,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:26,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:26,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:27:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:26,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:26,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:26,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:26,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192952274] [2021-02-24 03:27:26,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:26,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:27:26,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276194288] [2021-02-24 03:27:26,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:27:26,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:26,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:27:26,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:27:26,127 INFO L87 Difference]: Start difference. First operand 283 states. Second operand 3 states. [2021-02-24 03:27:27,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:27,719 INFO L93 Difference]: Finished difference Result 391 states and 467 transitions. [2021-02-24 03:27:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:27:27,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-24 03:27:27,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:27,739 INFO L225 Difference]: With dead ends: 391 [2021-02-24 03:27:27,739 INFO L226 Difference]: Without dead ends: 254 [2021-02-24 03:27:27,745 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 [2021-02-24 03:27:27,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-02-24 03:27:27,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 215. [2021-02-24 03:27:27,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2021-02-24 03:27:27,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 230 transitions. [2021-02-24 03:27:27,885 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 230 transitions. Word has length 158 [2021-02-24 03:27:27,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:27,886 INFO L480 AbstractCegarLoop]: Abstraction has 215 states and 230 transitions. [2021-02-24 03:27:27,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:27:27,887 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 230 transitions. [2021-02-24 03:27:27,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-24 03:27:27,891 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:27,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:27:27,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:27:27,892 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:27,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:27,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1835863718, now seen corresponding path program 1 times [2021-02-24 03:27:27,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:27,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140389021] [2021-02-24 03:27:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:27,898 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:28,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:28,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:28,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:28,395 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:28,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:28,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:28,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:28,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:28,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:28,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:28,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:28,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:28,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:28,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:28,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-24 03:27:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:28,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:28,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:27:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:28,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:28,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 03:27:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:28,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:28,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:28,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140389021] [2021-02-24 03:27:28,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:28,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:27:28,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241302077] [2021-02-24 03:27:28,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:27:28,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:28,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:27:28,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:27:28,532 INFO L87 Difference]: Start difference. First operand 215 states and 230 transitions. Second operand 4 states. [2021-02-24 03:27:29,315 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:27:30,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:30,047 INFO L93 Difference]: Finished difference Result 298 states and 331 transitions. [2021-02-24 03:27:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:27:30,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-24 03:27:30,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:30,064 INFO L225 Difference]: With dead ends: 298 [2021-02-24 03:27:30,065 INFO L226 Difference]: Without dead ends: 237 [2021-02-24 03:27:30,069 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 [2021-02-24 03:27:30,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-02-24 03:27:30,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 205. [2021-02-24 03:27:30,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2021-02-24 03:27:30,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 217 transitions. [2021-02-24 03:27:30,173 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 217 transitions. Word has length 159 [2021-02-24 03:27:30,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:30,173 INFO L480 AbstractCegarLoop]: Abstraction has 205 states and 217 transitions. [2021-02-24 03:27:30,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:27:30,174 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 217 transitions. [2021-02-24 03:27:30,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-24 03:27:30,184 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:30,185 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] [2021-02-24 03:27:30,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:27:30,189 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:30,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:30,191 INFO L82 PathProgramCache]: Analyzing trace with hash 945332546, now seen corresponding path program 1 times [2021-02-24 03:27:30,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:30,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553552910] [2021-02-24 03:27:30,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:30,201 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:30,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:30,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:30,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:30,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:30,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:27:30,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:27:30,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:27:30,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:30,872 WARN L202 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:30,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:30,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:30,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:27:30,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:30,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:30,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:30,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:30,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:30,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:30,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:30,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:27:31,009 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:27:31,011 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:27:31,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:31,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:31,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:31,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:27:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:31,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:31,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:31,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:27:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:31,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:31,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:31,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-24 03:27:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:31,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:31,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:31,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:31,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553552910] [2021-02-24 03:27:31,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:31,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:27:31,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372423572] [2021-02-24 03:27:31,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:27:31,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:31,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:27:31,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:27:31,108 INFO L87 Difference]: Start difference. First operand 205 states and 217 transitions. Second operand 9 states. [2021-02-24 03:27:31,781 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:27:32,218 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:27:32,617 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:27:32,995 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:33,416 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:27:33,790 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:34,847 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:27:36,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:36,458 INFO L93 Difference]: Finished difference Result 519 states and 592 transitions. [2021-02-24 03:27:36,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:27:36,459 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-24 03:27:36,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:36,463 INFO L225 Difference]: With dead ends: 519 [2021-02-24 03:27:36,463 INFO L226 Difference]: Without dead ends: 429 [2021-02-24 03:27:36,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-24 03:27:36,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-02-24 03:27:36,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 358. [2021-02-24 03:27:36,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2021-02-24 03:27:36,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 393 transitions. [2021-02-24 03:27:36,685 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 393 transitions. Word has length 168 [2021-02-24 03:27:36,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:36,686 INFO L480 AbstractCegarLoop]: Abstraction has 358 states and 393 transitions. [2021-02-24 03:27:36,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:27:36,686 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 393 transitions. [2021-02-24 03:27:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-24 03:27:36,690 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:36,690 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] [2021-02-24 03:27:36,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:27:36,691 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:36,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:36,692 INFO L82 PathProgramCache]: Analyzing trace with hash 473823969, now seen corresponding path program 1 times [2021-02-24 03:27:36,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:36,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364690778] [2021-02-24 03:27:36,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:36,697 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:36,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:36,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:36,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:36,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:36,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:36,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:36,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:36,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:36,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:36,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:36,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:36,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:36,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:36,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:36,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:36,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:37,205 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:27:37,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:27:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:37,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:37,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:27:37,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:27:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:37,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:37,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:27:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:37,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:37,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:27:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:37,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:37,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:27:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:37,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:37,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-24 03:27:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:37,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:37,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-24 03:27:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:37,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:37,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 03:27:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:37,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:37,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:37,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:27:37,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 03:27:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:27:37,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:27:37,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:27:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:27:37,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364690778] [2021-02-24 03:27:37,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:27:37,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 03:27:37,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098705231] [2021-02-24 03:27:37,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 03:27:37,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:27:37,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 03:27:37,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 03:27:37,484 INFO L87 Difference]: Start difference. First operand 358 states and 393 transitions. Second operand 8 states. [2021-02-24 03:27:38,106 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:27:39,651 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:40,097 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:27:40,556 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:40,990 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:27:41,377 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:27:41,797 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:42,180 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:27:42,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:27:42,636 INFO L93 Difference]: Finished difference Result 855 states and 999 transitions. [2021-02-24 03:27:42,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:27:42,637 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 171 [2021-02-24 03:27:42,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:27:42,643 INFO L225 Difference]: With dead ends: 855 [2021-02-24 03:27:42,643 INFO L226 Difference]: Without dead ends: 612 [2021-02-24 03:27:42,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-02-24 03:27:42,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-02-24 03:27:42,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 576. [2021-02-24 03:27:42,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2021-02-24 03:27:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 652 transitions. [2021-02-24 03:27:42,923 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 652 transitions. Word has length 171 [2021-02-24 03:27:42,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:27:42,923 INFO L480 AbstractCegarLoop]: Abstraction has 576 states and 652 transitions. [2021-02-24 03:27:42,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 03:27:42,924 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 652 transitions. [2021-02-24 03:27:42,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-24 03:27:42,927 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:27:42,928 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] [2021-02-24 03:27:42,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:27:42,928 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:27:42,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:27:42,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1593796173, now seen corresponding path program 1 times [2021-02-24 03:27:42,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:27:42,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183685767] [2021-02-24 03:27:42,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:27:42,932 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:27:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:27:43,009 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:27:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:27:43,081 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:27:43,295 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:27:43,295 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:27:43,296 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:27:43,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:27:43 BoogieIcfgContainer [2021-02-24 03:27:43,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:27:43,322 INFO L168 Benchmark]: Toolchain (without parser) took 20642.18 ms. Allocated memory was 157.3 MB in the beginning and 463.5 MB in the end (delta: 306.2 MB). Free memory was 113.1 MB in the beginning and 262.5 MB in the end (delta: -149.4 MB). Peak memory consumption was 157.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:27:43,323 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 157.3 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:27:43,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.59 ms. Allocated memory is still 157.3 MB. Free memory was 112.0 MB in the beginning and 92.3 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:27:43,324 INFO L168 Benchmark]: Boogie Preprocessor took 186.81 ms. Allocated memory is still 157.3 MB. Free memory was 92.3 MB in the beginning and 138.3 MB in the end (delta: -46.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2021-02-24 03:27:43,324 INFO L168 Benchmark]: RCFGBuilder took 1554.55 ms. Allocated memory is still 157.3 MB. Free memory was 138.3 MB in the beginning and 97.2 MB in the end (delta: 41.1 MB). Peak memory consumption was 65.7 MB. Max. memory is 8.0 GB. [2021-02-24 03:27:43,325 INFO L168 Benchmark]: TraceAbstraction took 18363.15 ms. Allocated memory was 157.3 MB in the beginning and 463.5 MB in the end (delta: 306.2 MB). Free memory was 97.2 MB in the beginning and 262.5 MB in the end (delta: -165.2 MB). Peak memory consumption was 141.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:27:43,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 157.3 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 520.59 ms. Allocated memory is still 157.3 MB. Free memory was 112.0 MB in the beginning and 92.3 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 186.81 ms. Allocated memory is still 157.3 MB. Free memory was 92.3 MB in the beginning and 138.3 MB in the end (delta: -46.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1554.55 ms. Allocated memory is still 157.3 MB. Free memory was 138.3 MB in the beginning and 97.2 MB in the end (delta: 41.1 MB). Peak memory consumption was 65.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18363.15 ms. Allocated memory was 157.3 MB in the beginning and 463.5 MB in the end (delta: 306.2 MB). Free memory was 97.2 MB in the beginning and 262.5 MB in the end (delta: -165.2 MB). Peak memory consumption was 141.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 801]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L80] int cleanupTimeShifts = 4; [L388] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L161] int retValue_acc ; [L162] int tmp ; [L166] FCALL select_helpers() [L167] FCALL select_features() [L168] CALL, EXPR valid_product() [L210] int retValue_acc ; [L213] retValue_acc = 1 [L214] return (retValue_acc); [L168] RET, EXPR valid_product() [L168] tmp = valid_product() [L170] COND TRUE \read(tmp) [L172] FCALL setup() [L173] CALL runTest() [L152] CALL test() [L731] int splverifierCounter ; [L732] int tmp ; [L733] int tmp___0 ; [L734] int tmp___1 ; [L735] int tmp___2 ; [L738] splverifierCounter = 0 [L740] COND TRUE 1 [L742] COND TRUE splverifierCounter < 4 [L748] tmp = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp) [L752] CALL waterRise() [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 [L752] RET waterRise() [L758] tmp___0 = __VERIFIER_nondet_int() [L760] COND FALSE !(\read(tmp___0)) [L768] tmp___2 = __VERIFIER_nondet_int() [L770] COND TRUE \read(tmp___2) [L785] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) [L604] COND TRUE \read(systemActive) [L606] FCALL processEnvironment() [L612] CALL __utac_acc__Specification3_spec__1() [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L53] CALL, EXPR isMethaneLevelCritical() [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); [L53] RET, EXPR isMethaneLevelCritical() [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L59] CALL, EXPR getWaterLevel() [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L63] CALL, EXPR isPumpRunning() [L670] int retValue_acc ; [L673] retValue_acc = pumpRunning [L674] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) [L69] CALL __automaton_fail() [L801] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 602 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 799 SDtfs, 776 SDslu, 1355 SDs, 0 SdLazy, 2180 SolverSat, 243 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=576occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 178 StatesRemovedByMinimization, 4 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...