/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 16:25:16,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 16:25:16,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 16:25:16,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 16:25:16,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 16:25:16,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 16:25:16,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 16:25:16,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 16:25:16,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 16:25:16,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 16:25:16,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 16:25:16,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 16:25:16,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 16:25:16,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 16:25:16,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 16:25:16,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 16:25:16,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 16:25:16,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 16:25:16,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 16:25:16,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 16:25:16,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 16:25:16,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 16:25:16,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 16:25:16,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 16:25:16,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 16:25:16,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 16:25:16,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 16:25:16,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 16:25:16,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 16:25:16,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 16:25:16,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 16:25:16,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 16:25:16,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 16:25:16,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 16:25:16,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 16:25:16,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 16:25:16,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 16:25:16,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 16:25:16,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 16:25:16,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 16:25:16,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 16:25:16,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 16:25:16,958 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 16:25:16,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 16:25:16,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 16:25:16,963 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 16:25:16,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 16:25:16,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 16:25:16,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 16:25:16,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 16:25:16,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 16:25:16,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 16:25:16,965 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 16:25:16,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 16:25:16,966 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 16:25:16,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 16:25:16,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 16:25:16,967 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 16:25:16,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 16:25:16,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 16:25:16,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 16:25:16,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 16:25:16,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 16:25:16,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 16:25:16,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 16:25:17,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 16:25:17,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 16:25:17,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 16:25:17,424 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 16:25:17,425 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 16:25:17,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2021-02-23 16:25:17,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a13102f2/8fcf5501cebd45aa93441c383e069b04/FLAGaafb13716 [2021-02-23 16:25:18,192 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 16:25:18,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2021-02-23 16:25:18,212 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a13102f2/8fcf5501cebd45aa93441c383e069b04/FLAGaafb13716 [2021-02-23 16:25:18,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a13102f2/8fcf5501cebd45aa93441c383e069b04 [2021-02-23 16:25:18,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 16:25:18,514 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 16:25:18,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 16:25:18,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 16:25:18,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 16:25:18,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:25:18" (1/1) ... [2021-02-23 16:25:18,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765fa417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:18, skipping insertion in model container [2021-02-23 16:25:18,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:25:18" (1/1) ... [2021-02-23 16:25:18,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 16:25:18,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 16:25:18,753 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_product36.cil.c[1281,1294] [2021-02-23 16:25:18,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:25:18,939 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 16:25:18,972 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_product36.cil.c[1281,1294] [2021-02-23 16:25:19,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:25:19,177 INFO L208 MainTranslator]: Completed translation [2021-02-23 16:25:19,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:19 WrapperNode [2021-02-23 16:25:19,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 16:25:19,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 16:25:19,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 16:25:19,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 16:25:19,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:19" (1/1) ... [2021-02-23 16:25:19,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:19" (1/1) ... [2021-02-23 16:25:19,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:19" (1/1) ... [2021-02-23 16:25:19,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:19" (1/1) ... [2021-02-23 16:25:19,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:19" (1/1) ... [2021-02-23 16:25:19,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:19" (1/1) ... [2021-02-23 16:25:19,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:19" (1/1) ... [2021-02-23 16:25:19,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 16:25:19,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 16:25:19,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 16:25:19,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 16:25:19,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:19" (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 [2021-02-23 16:25:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 16:25:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 16:25:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 16:25:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 16:25:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 16:25:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 16:25:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 16:25:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 16:25:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 16:25:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 16:25:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 16:25:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 16:25:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 16:25:19,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 16:25:19,395 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 16:25:19,395 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 16:25:19,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 16:25:19,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 16:25:19,396 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 16:25:19,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 16:25:19,396 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 16:25:19,396 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 16:25:19,396 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 16:25:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 16:25:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 16:25:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 16:25:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 16:25:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 16:25:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 16:25:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 16:25:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 16:25:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 16:25:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 16:25:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 16:25:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 16:25:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 16:25:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 16:25:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 16:25:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 16:25:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:25:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 16:25:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 16:25:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 16:25:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 16:25:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 16:25:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 16:25:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 16:25:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 16:25:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 16:25:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 16:25:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 16:25:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 16:25:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 16:25:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 16:25:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 16:25:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 16:25:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 16:25:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 16:25:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 16:25:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 16:25:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 16:25:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 16:25:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 16:25:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 16:25:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 16:25:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 16:25:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 16:25:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 16:25:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 16:25:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 16:25:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 16:25:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 16:25:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 16:25:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:25:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 16:25:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 16:25:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 16:25:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 16:25:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 16:25:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 16:25:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 16:25:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 16:25:19,453 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 16:25:19,453 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 16:25:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 16:25:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 16:25:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 16:25:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 16:25:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 16:25:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 16:25:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 16:25:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 16:25:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 16:25:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 16:25:21,220 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 16:25:21,221 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 16:25:21,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:25:21 BoogieIcfgContainer [2021-02-23 16:25:21,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 16:25:21,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 16:25:21,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 16:25:21,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 16:25:21,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 04:25:18" (1/3) ... [2021-02-23 16:25:21,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1050dfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:25:21, skipping insertion in model container [2021-02-23 16:25:21,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:25:19" (2/3) ... [2021-02-23 16:25:21,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1050dfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:25:21, skipping insertion in model container [2021-02-23 16:25:21,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:25:21" (3/3) ... [2021-02-23 16:25:21,234 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2021-02-23 16:25:21,242 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 16:25:21,248 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 16:25:21,269 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 16:25:21,304 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 16:25:21,305 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 16:25:21,305 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 16:25:21,305 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 16:25:21,306 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 16:25:21,306 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 16:25:21,306 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 16:25:21,307 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 16:25:21,347 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2021-02-23 16:25:21,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 16:25:21,386 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:21,388 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] [2021-02-23 16:25:21,389 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:21,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:21,399 INFO L82 PathProgramCache]: Analyzing trace with hash -251930548, now seen corresponding path program 1 times [2021-02-23 16:25:21,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:21,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88335112] [2021-02-23 16:25:21,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:21,490 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:21,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:21,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:21,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:21,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:22,538 WARN L202 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:25:22,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:25:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:22,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:22,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:22,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:25:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:22,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:22,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:22,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:25:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:22,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:22,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:22,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:25:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:22,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:22,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:22,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:25:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:22,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:22,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:22,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 16:25:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:22,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:22,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:22,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 16:25:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:22,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:22,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:22,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 16:25:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:22,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:22,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:25:22,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88335112] [2021-02-23 16:25:22,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:25:22,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 16:25:22,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353476703] [2021-02-23 16:25:22,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 16:25:22,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:25:22,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 16:25:22,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:25:22,858 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 3 states. [2021-02-23 16:25:25,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:25,272 INFO L93 Difference]: Finished difference Result 476 states and 564 transitions. [2021-02-23 16:25:25,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 16:25:25,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 16:25:25,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:25,291 INFO L225 Difference]: With dead ends: 476 [2021-02-23 16:25:25,291 INFO L226 Difference]: Without dead ends: 298 [2021-02-23 16:25:25,297 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 [2021-02-23 16:25:25,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-02-23 16:25:25,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 256. [2021-02-23 16:25:25,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2021-02-23 16:25:25,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 276 transitions. [2021-02-23 16:25:25,480 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 276 transitions. Word has length 158 [2021-02-23 16:25:25,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:25,481 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 276 transitions. [2021-02-23 16:25:25,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 16:25:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 276 transitions. [2021-02-23 16:25:25,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 16:25:25,486 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:25,486 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] [2021-02-23 16:25:25,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 16:25:25,487 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:25,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:25,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1795389272, now seen corresponding path program 1 times [2021-02-23 16:25:25,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:25,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478510126] [2021-02-23 16:25:25,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:25,493 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:25,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:25,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:25,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:25,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:25,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:25,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,267 WARN L202 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:25:26,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:25:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:25:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:25:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:25:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:25:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 16:25:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 16:25:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 16:25:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:26,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:26,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:26,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:25:26,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478510126] [2021-02-23 16:25:26,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:25:26,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 16:25:26,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147695129] [2021-02-23 16:25:26,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 16:25:26,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:25:26,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 16:25:26,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 16:25:26,389 INFO L87 Difference]: Start difference. First operand 256 states and 276 transitions. Second operand 4 states. [2021-02-23 16:25:27,553 WARN L202 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:25:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:29,030 INFO L93 Difference]: Finished difference Result 379 states and 424 transitions. [2021-02-23 16:25:29,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 16:25:29,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 16:25:29,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:29,036 INFO L225 Difference]: With dead ends: 379 [2021-02-23 16:25:29,036 INFO L226 Difference]: Without dead ends: 281 [2021-02-23 16:25:29,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 16:25:29,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-02-23 16:25:29,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 246. [2021-02-23 16:25:29,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2021-02-23 16:25:29,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 263 transitions. [2021-02-23 16:25:29,139 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 263 transitions. Word has length 159 [2021-02-23 16:25:29,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:29,139 INFO L480 AbstractCegarLoop]: Abstraction has 246 states and 263 transitions. [2021-02-23 16:25:29,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 16:25:29,140 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 263 transitions. [2021-02-23 16:25:29,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 16:25:29,142 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:29,142 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] [2021-02-23 16:25:29,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 16:25:29,143 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:29,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:29,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1756115113, now seen corresponding path program 1 times [2021-02-23 16:25:29,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:29,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747323121] [2021-02-23 16:25:29,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:29,148 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:29,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:29,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:29,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:29,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:29,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:29,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:29,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:29,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:29,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:29,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:25:29,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:29,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:29,906 WARN L202 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:25:29,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:25:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:29,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:29,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:29,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:25:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:29,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:29,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:29,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:25:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:29,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:29,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:29,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:25:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:29,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:29,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:29,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:29,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:25:30,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:30,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:25:30,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:25:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:30,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:30,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:30,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 16:25:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:30,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:30,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:30,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 16:25:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:30,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:30,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:30,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 16:25:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:30,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:30,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:30,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 16:25:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:30,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:30,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:30,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:25:30,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747323121] [2021-02-23 16:25:30,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:25:30,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 16:25:30,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946862708] [2021-02-23 16:25:30,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 16:25:30,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:25:30,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 16:25:30,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 16:25:30,172 INFO L87 Difference]: Start difference. First operand 246 states and 263 transitions. Second operand 10 states. [2021-02-23 16:25:31,094 WARN L202 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:25:31,960 WARN L202 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:25:32,701 WARN L202 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:25:33,434 WARN L202 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:34,142 WARN L202 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:25:34,836 WARN L202 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:36,518 WARN L202 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:25:40,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:40,274 INFO L93 Difference]: Finished difference Result 670 states and 775 transitions. [2021-02-23 16:25:40,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 16:25:40,275 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 16:25:40,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:40,288 INFO L225 Difference]: With dead ends: 670 [2021-02-23 16:25:40,288 INFO L226 Difference]: Without dead ends: 539 [2021-02-23 16:25:40,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-23 16:25:40,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2021-02-23 16:25:40,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 436. [2021-02-23 16:25:40,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2021-02-23 16:25:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 481 transitions. [2021-02-23 16:25:40,531 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 481 transitions. Word has length 172 [2021-02-23 16:25:40,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:40,532 INFO L480 AbstractCegarLoop]: Abstraction has 436 states and 481 transitions. [2021-02-23 16:25:40,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 16:25:40,532 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 481 transitions. [2021-02-23 16:25:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 16:25:40,536 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:40,536 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] [2021-02-23 16:25:40,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 16:25:40,537 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:40,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:40,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1318568750, now seen corresponding path program 1 times [2021-02-23 16:25:40,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:40,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084315926] [2021-02-23 16:25:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:40,541 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:40,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:40,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:40,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:40,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:40,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:40,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:40,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:40,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:40,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:40,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:40,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:40,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:40,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:40,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:40,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:40,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:41,314 WARN L202 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:25:41,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:25:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:41,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:41,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:25:41,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:25:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:41,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:41,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:25:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:41,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:41,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:25:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:41,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:41,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:25:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:41,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:41,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 16:25:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:41,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:41,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 16:25:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:41,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:41,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-23 16:25:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:41,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:41,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:41,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:41,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-23 16:25:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:41,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:41,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:25:41,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084315926] [2021-02-23 16:25:41,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:25:41,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 16:25:41,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705601536] [2021-02-23 16:25:41,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 16:25:41,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:25:41,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 16:25:41,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 16:25:41,525 INFO L87 Difference]: Start difference. First operand 436 states and 481 transitions. Second operand 9 states. [2021-02-23 16:25:42,603 WARN L202 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:25:45,774 WARN L202 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:46,564 WARN L202 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:25:47,376 WARN L202 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:48,200 WARN L202 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:25:48,929 WARN L202 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:25:49,681 WARN L202 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:50,440 WARN L202 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:25:51,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:51,977 INFO L93 Difference]: Finished difference Result 1152 states and 1376 transitions. [2021-02-23 16:25:51,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 16:25:51,982 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-23 16:25:51,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:51,988 INFO L225 Difference]: With dead ends: 1152 [2021-02-23 16:25:51,988 INFO L226 Difference]: Without dead ends: 831 [2021-02-23 16:25:51,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 16:25:51,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2021-02-23 16:25:52,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 732. [2021-02-23 16:25:52,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2021-02-23 16:25:52,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 828 transitions. [2021-02-23 16:25:52,355 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 828 transitions. Word has length 177 [2021-02-23 16:25:52,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:52,356 INFO L480 AbstractCegarLoop]: Abstraction has 732 states and 828 transitions. [2021-02-23 16:25:52,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 16:25:52,357 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 828 transitions. [2021-02-23 16:25:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 16:25:52,361 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:52,362 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] [2021-02-23 16:25:52,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 16:25:52,362 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:52,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:52,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1126686393, now seen corresponding path program 1 times [2021-02-23 16:25:52,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:52,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143881157] [2021-02-23 16:25:52,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:52,367 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:52,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:52,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:52,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:52,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:52,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:52,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:52,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:52,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:52,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:52,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:52,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:52,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:52,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:52,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:53,003 WARN L202 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:25:53,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:25:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:53,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:53,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:53,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:53,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:53,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:25:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:53,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:53,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:53,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:25:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:53,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:53,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:53,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:25:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:53,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:53,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:53,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:25:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:53,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:53,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:53,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 16:25:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:53,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:53,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:25:53,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 16:25:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:53,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:53,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:53,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 16:25:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:53,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:53,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:53,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 16:25:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:53,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:53,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:53,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-02-23 16:25:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:25:53,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:25:53,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:25:53,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:25:53,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143881157] [2021-02-23 16:25:53,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:25:53,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 16:25:53,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639085223] [2021-02-23 16:25:53,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 16:25:53,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:25:53,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 16:25:53,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 16:25:53,182 INFO L87 Difference]: Start difference. First operand 732 states and 828 transitions. Second operand 6 states. [2021-02-23 16:25:54,195 WARN L202 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:25:57,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:25:57,838 INFO L93 Difference]: Finished difference Result 1712 states and 2025 transitions. [2021-02-23 16:25:57,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 16:25:57,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2021-02-23 16:25:57,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:25:57,846 INFO L225 Difference]: With dead ends: 1712 [2021-02-23 16:25:57,847 INFO L226 Difference]: Without dead ends: 1095 [2021-02-23 16:25:57,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-23 16:25:57,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2021-02-23 16:25:58,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1015. [2021-02-23 16:25:58,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2021-02-23 16:25:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1152 transitions. [2021-02-23 16:25:58,367 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1152 transitions. Word has length 182 [2021-02-23 16:25:58,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:25:58,368 INFO L480 AbstractCegarLoop]: Abstraction has 1015 states and 1152 transitions. [2021-02-23 16:25:58,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 16:25:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1152 transitions. [2021-02-23 16:25:58,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 16:25:58,374 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:25:58,374 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] [2021-02-23 16:25:58,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 16:25:58,375 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:25:58,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:25:58,375 INFO L82 PathProgramCache]: Analyzing trace with hash -2136655117, now seen corresponding path program 1 times [2021-02-23 16:25:58,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:25:58,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936107460] [2021-02-23 16:25:58,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:25:58,383 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:25:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:25:58,477 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:25:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:25:58,550 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:25:58,746 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 16:25:58,746 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 16:25:58,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 16:25:58,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 04:25:58 BoogieIcfgContainer [2021-02-23 16:25:58,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 16:25:58,774 INFO L168 Benchmark]: Toolchain (without parser) took 40269.37 ms. Allocated memory was 168.8 MB in the beginning and 487.6 MB in the end (delta: 318.8 MB). Free memory was 143.6 MB in the beginning and 335.9 MB in the end (delta: -192.3 MB). Peak memory consumption was 127.1 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:58,775 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 168.8 MB. Free memory is still 142.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 16:25:58,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.31 ms. Allocated memory is still 168.8 MB. Free memory was 142.5 MB in the beginning and 121.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:58,776 INFO L168 Benchmark]: Boogie Preprocessor took 106.19 ms. Allocated memory is still 168.8 MB. Free memory was 121.8 MB in the beginning and 117.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:58,776 INFO L168 Benchmark]: RCFGBuilder took 1937.85 ms. Allocated memory was 168.8 MB in the beginning and 220.2 MB in the end (delta: 51.4 MB). Free memory was 117.9 MB in the beginning and 173.4 MB in the end (delta: -55.5 MB). Peak memory consumption was 45.8 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:58,777 INFO L168 Benchmark]: TraceAbstraction took 37547.15 ms. Allocated memory was 220.2 MB in the beginning and 487.6 MB in the end (delta: 267.4 MB). Free memory was 173.4 MB in the beginning and 335.9 MB in the end (delta: -162.5 MB). Peak memory consumption was 104.3 MB. Max. memory is 8.0 GB. [2021-02-23 16:25:58,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 168.8 MB. Free memory is still 142.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 662.31 ms. Allocated memory is still 168.8 MB. Free memory was 142.5 MB in the beginning and 121.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 106.19 ms. Allocated memory is still 168.8 MB. Free memory was 121.8 MB in the beginning and 117.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1937.85 ms. Allocated memory was 168.8 MB in the beginning and 220.2 MB in the end (delta: 51.4 MB). Free memory was 117.9 MB in the beginning and 173.4 MB in the end (delta: -55.5 MB). Peak memory consumption was 45.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 37547.15 ms. Allocated memory was 220.2 MB in the beginning and 487.6 MB in the end (delta: 267.4 MB). Free memory was 173.4 MB in the beginning and 335.9 MB in the end (delta: -162.5 MB). Peak memory consumption was 104.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L428] int pumpRunning = 0; [L429] int systemActive = 1; [L677] int waterLevel = 1; [L678] int methaneLevelCritical = 0; [L771] int cleanupTimeShifts = 4; [L847] int retValue_acc ; [L848] int tmp ; [L852] FCALL select_helpers() [L853] FCALL select_features() [L854] CALL, EXPR valid_product() [L896] int retValue_acc ; [L899] retValue_acc = 1 [L900] return (retValue_acc); [L854] RET, EXPR valid_product() [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L858] FCALL setup() [L859] CALL runTest() [L838] CALL test() [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 [L617] COND TRUE 1 [L619] COND TRUE splverifierCounter < 4 [L625] tmp = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp) [L629] CALL waterRise() [L695] COND TRUE waterLevel < 2 [L696] waterLevel = waterLevel + 1 [L629] RET waterRise() [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND FALSE !(\read(tmp___2)) [L653] tmp___1 = __VERIFIER_nondet_int() [L655] COND TRUE \read(tmp___1) [L657] CALL stopSystem() [L584] COND FALSE !(\read(pumpRunning)) [L591] systemActive = 0 [L657] RET stopSystem() [L664] CALL timeShift() [L436] COND FALSE !(\read(pumpRunning)) [L443] COND FALSE !(\read(systemActive)) [L451] CALL __utac_acc__Specification3_spec__1() [L906] int tmp ; [L907] int tmp___0 ; [L908] int tmp___1 ; [L912] CALL, EXPR isMethaneLevelCritical() [L716] int retValue_acc ; [L719] retValue_acc = methaneLevelCritical [L720] return (retValue_acc); [L912] RET, EXPR isMethaneLevelCritical() [L912] tmp = isMethaneLevelCritical() [L914] COND FALSE !(\read(tmp)) [L918] CALL, EXPR getWaterLevel() [L748] int retValue_acc ; [L751] retValue_acc = waterLevel [L752] return (retValue_acc); [L918] RET, EXPR getWaterLevel() [L918] tmp___0 = getWaterLevel() [L920] COND TRUE tmp___0 == 2 [L922] CALL, EXPR isPumpRunning() [L517] int retValue_acc ; [L520] retValue_acc = pumpRunning [L521] return (retValue_acc); [L922] RET, EXPR isPumpRunning() [L922] tmp___1 = isPumpRunning() [L924] COND FALSE !(\read(tmp___1)) [L928] CALL __automaton_fail() [L46] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 30.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1227 SDtfs, 1974 SDslu, 1635 SDs, 0 SdLazy, 3463 SolverSat, 657 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 14.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1015occurred 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: 1.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 359 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...