/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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:30:08,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:30:08,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:30:08,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:30:08,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:30:08,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:30:08,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:30:08,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:30:08,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:30:08,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:30:08,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:30:08,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:30:08,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:30:08,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:30:08,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:30:08,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:30:08,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:30:08,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:30:08,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:30:08,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:30:08,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:30:08,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:30:08,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:30:08,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:30:08,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:30:08,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:30:08,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:30:08,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:30:08,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:30:08,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:30:08,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:30:08,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:30:08,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:30:08,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:30:08,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:30:08,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:30:08,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:30:08,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:30:08,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:30:08,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:30:08,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:30:08,955 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 03:30:08,967 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:30:08,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:30:08,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:30:08,969 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:30:08,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:30:08,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:30:08,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:30:08,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:30:08,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:30:08,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:30:08,971 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:30:08,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:30:08,971 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:30:08,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:30:08,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:30:08,972 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:30:08,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:30:08,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:30:08,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:30:08,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:30:08,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:30:08,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:30:08,974 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:30:08,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:30:09,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:30:09,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:30:09,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:30:09,340 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:30:09,340 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:30:09,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2021-02-24 03:30:09,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1830c5b4/80f692c4ae764fdb8f0ebdc8a6cb9531/FLAG467688c08 [2021-02-24 03:30:10,139 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:30:10,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2021-02-24 03:30:10,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1830c5b4/80f692c4ae764fdb8f0ebdc8a6cb9531/FLAG467688c08 [2021-02-24 03:30:10,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1830c5b4/80f692c4ae764fdb8f0ebdc8a6cb9531 [2021-02-24 03:30:10,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:30:10,394 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:30:10,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:30:10,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:30:10,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:30:10,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:30:10" (1/1) ... [2021-02-24 03:30:10,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55881a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:10, skipping insertion in model container [2021-02-24 03:30:10,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:30:10" (1/1) ... [2021-02-24 03:30:10,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:30:10,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:30:10,790 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_product64.cil.c[18698,18711] [2021-02-24 03:30:10,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:30:10,815 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:30:10,961 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_product64.cil.c[18698,18711] [2021-02-24 03:30:10,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:30:11,006 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:30:11,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:11 WrapperNode [2021-02-24 03:30:11,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:30:11,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:30:11,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:30:11,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:30:11,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:11" (1/1) ... [2021-02-24 03:30:11,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:11" (1/1) ... [2021-02-24 03:30:11,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:11" (1/1) ... [2021-02-24 03:30:11,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:11" (1/1) ... [2021-02-24 03:30:11,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:11" (1/1) ... [2021-02-24 03:30:11,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:11" (1/1) ... [2021-02-24 03:30:11,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:11" (1/1) ... [2021-02-24 03:30:11,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:30:11,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:30:11,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:30:11,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:30:11,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:11" (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 03:30:11,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:30:11,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:30:11,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:30:11,206 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:30:11,206 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:30:11,206 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:30:11,206 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:30:11,206 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:30:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:30:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:30:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-24 03:30:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-24 03:30:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:30:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-24 03:30:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:30:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:30:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:30:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:30:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:30:11,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:30:11,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-24 03:30:11,209 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-24 03:30:11,209 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-24 03:30:11,209 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:30:11,209 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:30:11,210 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:30:11,210 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:30:11,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:30:11,210 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:30:11,210 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:30:11,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:30:11,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-24 03:30:11,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:30:11,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:30:11,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:30:11,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:30:11,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:30:11,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:30:11,212 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:30:11,212 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:30:11,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:30:11,212 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:30:11,212 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:30:11,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:30:11,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:30:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:30:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:30:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:30:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:30:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:30:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:30:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:30:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:30:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:30:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:30:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:30:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:30:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:30:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:30:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-24 03:30:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:30:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:30:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:30:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:30:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:30:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-24 03:30:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-24 03:30:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:30:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:30:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:30:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:30:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-24 03:30:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-24 03:30:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-24 03:30:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:30:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-24 03:30:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:30:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:30:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:30:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:30:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:30:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:30:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:30:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:30:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:30:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:30:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:30:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:30:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:30:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:30:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:30:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:30:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:30:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:30:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:30:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:30:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:30:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:30:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:30:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:30:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:30:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:30:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:30:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:30:12,934 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:30:12,934 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:30:12,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:30:12 BoogieIcfgContainer [2021-02-24 03:30:12,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:30:12,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:30:12,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:30:12,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:30:12,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:30:10" (1/3) ... [2021-02-24 03:30:12,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58cfb467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:30:12, skipping insertion in model container [2021-02-24 03:30:12,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:30:11" (2/3) ... [2021-02-24 03:30:12,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58cfb467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:30:12, skipping insertion in model container [2021-02-24 03:30:12,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:30:12" (3/3) ... [2021-02-24 03:30:12,946 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2021-02-24 03:30:12,953 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:30:12,959 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:30:12,977 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:30:13,001 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:30:13,002 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:30:13,002 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:30:13,002 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:30:13,002 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:30:13,003 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:30:13,003 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:30:13,003 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:30:13,026 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states. [2021-02-24 03:30:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-24 03:30:13,050 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:13,051 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 03:30:13,051 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:13,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:13,059 INFO L82 PathProgramCache]: Analyzing trace with hash -353660962, now seen corresponding path program 1 times [2021-02-24 03:30:13,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:13,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790544195] [2021-02-24 03:30:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:13,154 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:13,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:13,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:13,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:13,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:14,157 WARN L202 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:30:14,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:30:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:14,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:14,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:14,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:30:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:14,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:14,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:14,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:30:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:14,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:14,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:14,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:30:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:14,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:14,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:14,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:30:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:14,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:14,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:14,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:30:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:14,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:14,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:14,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:30:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:14,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:14,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:14,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:30:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:14,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:14,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:14,317 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 03:30:14,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790544195] [2021-02-24 03:30:14,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:30:14,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:30:14,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150465869] [2021-02-24 03:30:14,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:30:14,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:30:14,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:30:14,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:30:14,345 INFO L87 Difference]: Start difference. First operand 368 states. Second operand 3 states. [2021-02-24 03:30:16,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:30:16,557 INFO L93 Difference]: Finished difference Result 602 states and 716 transitions. [2021-02-24 03:30:16,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:30:16,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-24 03:30:16,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:30:16,589 INFO L225 Difference]: With dead ends: 602 [2021-02-24 03:30:16,590 INFO L226 Difference]: Without dead ends: 364 [2021-02-24 03:30:16,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:30:16,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-02-24 03:30:16,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 316. [2021-02-24 03:30:16,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2021-02-24 03:30:16,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 348 transitions. [2021-02-24 03:30:16,837 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 348 transitions. Word has length 158 [2021-02-24 03:30:16,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:30:16,841 INFO L480 AbstractCegarLoop]: Abstraction has 316 states and 348 transitions. [2021-02-24 03:30:16,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:30:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 348 transitions. [2021-02-24 03:30:16,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-24 03:30:16,858 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:16,859 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 03:30:16,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:30:16,859 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:16,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:16,863 INFO L82 PathProgramCache]: Analyzing trace with hash -2140843234, now seen corresponding path program 1 times [2021-02-24 03:30:16,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:16,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252395767] [2021-02-24 03:30:16,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:16,872 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:16,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:16,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:16,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:16,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:16,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,309 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:30:17,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:30:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:30:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:30:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:30:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:30:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-24 03:30:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:30:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 03:30:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:17,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:17,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:17,466 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 03:30:17,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252395767] [2021-02-24 03:30:17,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:30:17,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:30:17,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026852253] [2021-02-24 03:30:17,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:30:17,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:30:17,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:30:17,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:30:17,471 INFO L87 Difference]: Start difference. First operand 316 states and 348 transitions. Second operand 4 states. [2021-02-24 03:30:18,184 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:30:19,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:30:19,732 INFO L93 Difference]: Finished difference Result 508 states and 578 transitions. [2021-02-24 03:30:19,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:30:19,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-24 03:30:19,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:30:19,741 INFO L225 Difference]: With dead ends: 508 [2021-02-24 03:30:19,741 INFO L226 Difference]: Without dead ends: 347 [2021-02-24 03:30:19,743 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 03:30:19,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-02-24 03:30:19,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 306. [2021-02-24 03:30:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2021-02-24 03:30:19,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 335 transitions. [2021-02-24 03:30:19,871 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 335 transitions. Word has length 159 [2021-02-24 03:30:19,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:30:19,872 INFO L480 AbstractCegarLoop]: Abstraction has 306 states and 335 transitions. [2021-02-24 03:30:19,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:30:19,872 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 335 transitions. [2021-02-24 03:30:19,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-24 03:30:19,875 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:19,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:30:19,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:30:19,876 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:19,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:19,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1125048418, now seen corresponding path program 1 times [2021-02-24 03:30:19,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:19,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247881392] [2021-02-24 03:30:19,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:19,880 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:20,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:20,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:20,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:20,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:20,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:30:20,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:20,501 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:30:20,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:30:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:20,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:20,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:30:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:20,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:20,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:30:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:20,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:20,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:30:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:20,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:20,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:30:20,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:30:20,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:30:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:20,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:20,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-24 03:30:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:20,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:20,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:30:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:20,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:20,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-24 03:30:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:20,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:20,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-24 03:30:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:20,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:20,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:20,710 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 03:30:20,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247881392] [2021-02-24 03:30:20,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:30:20,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:30:20,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963455128] [2021-02-24 03:30:20,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:30:20,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:30:20,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:30:20,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:30:20,718 INFO L87 Difference]: Start difference. First operand 306 states and 335 transitions. Second operand 10 states. [2021-02-24 03:30:21,300 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:30:21,747 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:30:22,134 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:30:22,532 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:22,903 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:30:23,253 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:24,320 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:30:28,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:30:28,005 INFO L93 Difference]: Finished difference Result 862 states and 1007 transitions. [2021-02-24 03:30:28,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:30:28,005 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-24 03:30:28,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:30:28,014 INFO L225 Difference]: With dead ends: 862 [2021-02-24 03:30:28,014 INFO L226 Difference]: Without dead ends: 671 [2021-02-24 03:30:28,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-24 03:30:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2021-02-24 03:30:28,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 568. [2021-02-24 03:30:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2021-02-24 03:30:28,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 641 transitions. [2021-02-24 03:30:28,286 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 641 transitions. Word has length 172 [2021-02-24 03:30:28,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:30:28,286 INFO L480 AbstractCegarLoop]: Abstraction has 568 states and 641 transitions. [2021-02-24 03:30:28,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:30:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 641 transitions. [2021-02-24 03:30:28,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-24 03:30:28,291 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:28,291 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] [2021-02-24 03:30:28,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:30:28,292 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:28,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:28,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1543091679, now seen corresponding path program 1 times [2021-02-24 03:30:28,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:28,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128494083] [2021-02-24 03:30:28,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:28,297 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:28,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:28,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:28,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:28,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:28,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:28,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:28,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:28,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:28,704 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:30:28,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:30:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:28,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:28,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:30:28,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:30:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:28,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:28,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:30:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:28,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:28,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:30:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:28,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:28,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:30:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:28,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:28,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:30:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:28,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:28,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-24 03:30:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:28,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:28,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-24 03:30:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:28,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:28,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:28,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:28,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-24 03:30:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:28,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:28,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:28,857 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 03:30:28,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128494083] [2021-02-24 03:30:28,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:30:28,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:30:28,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174771129] [2021-02-24 03:30:28,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:30:28,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:30:28,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:30:28,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:30:28,860 INFO L87 Difference]: Start difference. First operand 568 states and 641 transitions. Second operand 9 states. [2021-02-24 03:30:29,524 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:30:31,858 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:32,310 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:30:32,787 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:33,244 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:30:33,607 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:30:33,981 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:34,333 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:30:36,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:30:36,008 INFO L93 Difference]: Finished difference Result 1572 states and 1896 transitions. [2021-02-24 03:30:36,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 03:30:36,009 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-24 03:30:36,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:30:36,016 INFO L225 Difference]: With dead ends: 1572 [2021-02-24 03:30:36,017 INFO L226 Difference]: Without dead ends: 1119 [2021-02-24 03:30:36,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-24 03:30:36,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2021-02-24 03:30:36,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1008. [2021-02-24 03:30:36,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1008 states. [2021-02-24 03:30:36,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1164 transitions. [2021-02-24 03:30:36,477 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1164 transitions. Word has length 177 [2021-02-24 03:30:36,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:30:36,478 INFO L480 AbstractCegarLoop]: Abstraction has 1008 states and 1164 transitions. [2021-02-24 03:30:36,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:30:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1164 transitions. [2021-02-24 03:30:36,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-24 03:30:36,483 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:36,484 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, 1, 1] [2021-02-24 03:30:36,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:30:36,484 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:36,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:36,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1490946969, now seen corresponding path program 1 times [2021-02-24 03:30:36,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:36,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101596369] [2021-02-24 03:30:36,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:36,488 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:36,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:36,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:36,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:36,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:36,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:36,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:36,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:36,834 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:30:36,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:30:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:36,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:36,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:36,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:30:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:36,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:36,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:30:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:36,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:36,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:30:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:36,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:36,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:30:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:36,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:36,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:30:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:36,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:30:36,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:30:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:36,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:36,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-24 03:30:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:36,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:36,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-24 03:30:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:36,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:36,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-02-24 03:30:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:30:36,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:30:36,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:30:36,970 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 03:30:36,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101596369] [2021-02-24 03:30:36,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:30:36,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:30:36,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252001141] [2021-02-24 03:30:36,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:30:36,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:30:36,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:30:36,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:30:36,973 INFO L87 Difference]: Start difference. First operand 1008 states and 1164 transitions. Second operand 6 states. [2021-02-24 03:30:37,590 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:30:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:30:40,579 INFO L93 Difference]: Finished difference Result 2258 states and 2721 transitions. [2021-02-24 03:30:40,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 03:30:40,579 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2021-02-24 03:30:40,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:30:40,587 INFO L225 Difference]: With dead ends: 2258 [2021-02-24 03:30:40,588 INFO L226 Difference]: Without dead ends: 1365 [2021-02-24 03:30:40,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:30:40,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2021-02-24 03:30:41,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1265. [2021-02-24 03:30:41,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2021-02-24 03:30:41,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1440 transitions. [2021-02-24 03:30:41,136 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1440 transitions. Word has length 182 [2021-02-24 03:30:41,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:30:41,137 INFO L480 AbstractCegarLoop]: Abstraction has 1265 states and 1440 transitions. [2021-02-24 03:30:41,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:30:41,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1440 transitions. [2021-02-24 03:30:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-24 03:30:41,140 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:30:41,140 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, 1, 1] [2021-02-24 03:30:41,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:30:41,141 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:30:41,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:30:41,141 INFO L82 PathProgramCache]: Analyzing trace with hash -2131034746, now seen corresponding path program 1 times [2021-02-24 03:30:41,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:30:41,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953694361] [2021-02-24 03:30:41,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:30:41,145 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:30:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:30:41,216 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:30:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:30:41,285 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:30:41,465 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:30:41,465 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:30:41,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:30:41,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:30:41 BoogieIcfgContainer [2021-02-24 03:30:41,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:30:41,501 INFO L168 Benchmark]: Toolchain (without parser) took 31116.87 ms. Allocated memory was 158.3 MB in the beginning and 746.6 MB in the end (delta: 588.3 MB). Free memory was 132.3 MB in the beginning and 469.9 MB in the end (delta: -337.5 MB). Peak memory consumption was 251.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:30:41,506 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 158.3 MB. Free memory is still 133.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:30:41,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.99 ms. Allocated memory is still 158.3 MB. Free memory was 131.3 MB in the beginning and 108.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:30:41,510 INFO L168 Benchmark]: Boogie Preprocessor took 90.67 ms. Allocated memory is still 158.3 MB. Free memory was 108.8 MB in the beginning and 104.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:30:41,513 INFO L168 Benchmark]: RCFGBuilder took 1838.22 ms. Allocated memory was 158.3 MB in the beginning and 205.5 MB in the end (delta: 47.2 MB). Free memory was 104.6 MB in the beginning and 151.3 MB in the end (delta: -46.7 MB). Peak memory consumption was 35.6 MB. Max. memory is 8.0 GB. [2021-02-24 03:30:41,514 INFO L168 Benchmark]: TraceAbstraction took 28560.31 ms. Allocated memory was 205.5 MB in the beginning and 746.6 MB in the end (delta: 541.1 MB). Free memory was 150.7 MB in the beginning and 469.9 MB in the end (delta: -319.1 MB). Peak memory consumption was 221.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:30:41,518 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 158.3 MB. Free memory is still 133.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 610.99 ms. Allocated memory is still 158.3 MB. Free memory was 131.3 MB in the beginning and 108.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 90.67 ms. Allocated memory is still 158.3 MB. Free memory was 108.8 MB in the beginning and 104.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1838.22 ms. Allocated memory was 158.3 MB in the beginning and 205.5 MB in the end (delta: 47.2 MB). Free memory was 104.6 MB in the beginning and 151.3 MB in the end (delta: -46.7 MB). Peak memory consumption was 35.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 28560.31 ms. Allocated memory was 205.5 MB in the beginning and 746.6 MB in the end (delta: 541.1 MB). Free memory was 150.7 MB in the beginning and 469.9 MB in the end (delta: -319.1 MB). Peak memory consumption was 221.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 998]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L92] int pumpRunning = 0; [L93] int systemActive = 1; [L429] int waterLevel = 1; [L430] int methaneLevelCritical = 0; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int cleanupTimeShifts = 4; [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L965] CALL test() [L360] int splverifierCounter ; [L361] int tmp ; [L362] int tmp___0 ; [L363] int tmp___1 ; [L364] int tmp___2 ; [L367] splverifierCounter = 0 [L369] COND TRUE 1 [L371] COND TRUE splverifierCounter < 4 [L377] tmp = __VERIFIER_nondet_int() [L379] COND TRUE \read(tmp) [L381] CALL waterRise() [L447] COND TRUE waterLevel < 2 [L448] waterLevel = waterLevel + 1 [L381] RET waterRise() [L387] tmp___0 = __VERIFIER_nondet_int() [L389] COND FALSE !(\read(tmp___0)) [L397] tmp___2 = __VERIFIER_nondet_int() [L399] COND FALSE !(\read(tmp___2)) [L405] tmp___1 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___1) [L409] CALL stopSystem() [L336] COND FALSE !(\read(pumpRunning)) [L343] systemActive = 0 [L409] RET stopSystem() [L416] CALL timeShift() [L100] COND FALSE !(\read(pumpRunning)) [L107] COND FALSE !(\read(systemActive)) [L115] CALL __utac_acc__Specification3_spec__1() [L1004] int tmp ; [L1005] int tmp___0 ; [L1006] int tmp___1 ; [L1010] CALL, EXPR isMethaneLevelCritical() [L468] int retValue_acc ; [L471] retValue_acc = methaneLevelCritical [L472] return (retValue_acc); [L1010] RET, EXPR isMethaneLevelCritical() [L1010] tmp = isMethaneLevelCritical() [L1012] COND FALSE !(\read(tmp)) [L1016] CALL, EXPR getWaterLevel() [L500] int retValue_acc ; [L503] retValue_acc = waterLevel [L504] return (retValue_acc); [L1016] RET, EXPR getWaterLevel() [L1016] tmp___0 = getWaterLevel() [L1018] COND TRUE tmp___0 == 2 [L1020] CALL, EXPR isPumpRunning() [L250] int retValue_acc ; [L253] retValue_acc = pumpRunning [L254] return (retValue_acc); [L1020] RET, EXPR isPumpRunning() [L1020] tmp___1 = isPumpRunning() [L1022] COND FALSE !(\read(tmp___1)) [L1026] CALL __automaton_fail() [L998] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 45 procedures, 683 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 22.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1508 SDtfs, 2605 SDslu, 1734 SDs, 0 SdLazy, 4507 SolverSat, 948 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1265occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 403 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...