/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_spec4_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:07:17,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:07:17,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:07:17,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:07:17,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:07:17,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:07:17,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:07:17,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:07:17,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:07:17,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:07:17,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:07:17,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:07:17,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:07:17,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:07:17,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:07:17,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:07:17,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:07:17,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:07:17,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:07:17,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:07:17,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:07:17,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:07:17,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:07:17,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:07:17,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:07:17,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:07:17,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:07:17,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:07:17,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:07:17,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:07:17,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:07:17,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:07:17,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:07:17,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:07:17,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:07:17,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:07:17,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:07:17,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:07:17,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:07:17,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:07:17,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:07:17,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:07:17,582 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:07:17,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:07:17,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:07:17,585 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:07:17,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:07:17,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:07:17,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:07:17,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:07:17,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:07:17,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:07:17,589 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:07:17,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:07:17,589 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:07:17,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:07:17,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:07:17,590 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:07:17,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:07:17,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:07:17,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:07:17,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:07:17,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:07:17,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:07:17,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:07:17,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:07:17,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:07:17,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:07:17,985 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:07:17,986 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:07:17,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product30.cil.c [2020-10-23 20:07:18,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d453a938e/659a09b353804a139db299499797fe59/FLAGe12cb9fc0 [2020-10-23 20:07:18,834 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:07:18,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product30.cil.c [2020-10-23 20:07:18,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d453a938e/659a09b353804a139db299499797fe59/FLAGe12cb9fc0 [2020-10-23 20:07:19,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d453a938e/659a09b353804a139db299499797fe59 [2020-10-23 20:07:19,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:07:19,160 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:07:19,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:07:19,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:07:19,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:07:19,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:07:19" (1/1) ... [2020-10-23 20:07:19,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72180d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:19, skipping insertion in model container [2020-10-23 20:07:19,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:07:19" (1/1) ... [2020-10-23 20:07:19,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:07:19,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:07:19,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:07:19,744 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:07:19,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:07:19,871 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:07:19,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:19 WrapperNode [2020-10-23 20:07:19,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:07:19,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:07:19,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:07:19,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:07:19,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:19" (1/1) ... [2020-10-23 20:07:19,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:19" (1/1) ... [2020-10-23 20:07:19,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:19" (1/1) ... [2020-10-23 20:07:19,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:19" (1/1) ... [2020-10-23 20:07:20,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:19" (1/1) ... [2020-10-23 20:07:20,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:19" (1/1) ... [2020-10-23 20:07:20,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:19" (1/1) ... [2020-10-23 20:07:20,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:07:20,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:07:20,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:07:20,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:07:20,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:19" (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 [2020-10-23 20:07:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:07:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:07:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:07:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:07:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:07:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:07:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:07:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:07:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:07:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:07:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:07:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:07:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:07:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:07:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:07:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:07:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:07:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:07:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:07:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:07:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:07:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:07:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:07:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:07:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:07:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:07:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:07:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:07:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:07:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:07:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:07:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:07:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:07:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:07:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:07:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:07:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:07:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:07:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:07:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:07:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:07:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:07:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:07:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:07:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:07:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:07:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:07:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:07:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:07:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:07:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:07:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:07:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:07:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:07:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:07:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:07:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:07:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:07:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:07:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:07:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:07:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:07:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:07:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:07:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:07:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:07:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:07:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:07:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:07:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:07:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:07:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:07:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:07:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:07:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:07:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:07:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:07:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:07:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:07:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:07:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:07:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:07:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:07:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:07:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:07:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:07:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:07:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:07:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:07:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:07:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:07:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:07:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:07:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:07:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:07:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:07:21,378 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:07:21,378 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:07:21,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:07:21 BoogieIcfgContainer [2020-10-23 20:07:21,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:07:21,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:07:21,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:07:21,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:07:21,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:07:19" (1/3) ... [2020-10-23 20:07:21,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663e49d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:07:21, skipping insertion in model container [2020-10-23 20:07:21,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:07:19" (2/3) ... [2020-10-23 20:07:21,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663e49d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:07:21, skipping insertion in model container [2020-10-23 20:07:21,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:07:21" (3/3) ... [2020-10-23 20:07:21,391 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product30.cil.c [2020-10-23 20:07:21,404 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:07:21,410 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:07:21,426 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:07:21,454 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:07:21,454 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:07:21,455 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:07:21,455 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:07:21,455 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:07:21,455 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:07:21,455 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:07:21,455 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:07:21,479 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2020-10-23 20:07:21,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:07:21,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:07:21,500 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] [2020-10-23 20:07:21,500 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:07:21,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:07:21,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1394122634, now seen corresponding path program 1 times [2020-10-23 20:07:21,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:07:21,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273272008] [2020-10-23 20:07:21,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:07:21,609 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:07:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:22,378 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:07:22,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:07:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:22,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:07:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:22,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:07:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:22,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:07:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:22,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:07:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:22,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:07:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:22,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:07:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:22,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:07:22,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273272008] [2020-10-23 20:07:22,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:07:22,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:07:22,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317780489] [2020-10-23 20:07:22,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:07:22,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:07:22,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:07:22,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:07:22,597 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 3 states. [2020-10-23 20:07:24,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:07:24,215 INFO L93 Difference]: Finished difference Result 484 states and 575 transitions. [2020-10-23 20:07:24,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:07:24,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:07:24,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:07:24,248 INFO L225 Difference]: With dead ends: 484 [2020-10-23 20:07:24,249 INFO L226 Difference]: Without dead ends: 301 [2020-10-23 20:07:24,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:07:24,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-23 20:07:24,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-10-23 20:07:24,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-10-23 20:07:24,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 280 transitions. [2020-10-23 20:07:24,460 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 280 transitions. Word has length 148 [2020-10-23 20:07:24,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:07:24,461 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 280 transitions. [2020-10-23 20:07:24,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:07:24,462 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 280 transitions. [2020-10-23 20:07:24,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:07:24,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:07:24,467 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] [2020-10-23 20:07:24,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:07:24,468 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:07:24,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:07:24,469 INFO L82 PathProgramCache]: Analyzing trace with hash 33354485, now seen corresponding path program 1 times [2020-10-23 20:07:24,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:07:24,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144469703] [2020-10-23 20:07:24,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:07:24,479 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:07:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:24,936 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:07:24,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:07:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:24,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:07:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:24,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:07:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:24,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:07:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:24,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:07:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:24,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:07:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:24,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:07:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:25,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:07:25,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144469703] [2020-10-23 20:07:25,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:07:25,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:07:25,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277205533] [2020-10-23 20:07:25,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:07:25,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:07:25,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:07:25,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:07:25,085 INFO L87 Difference]: Start difference. First operand 259 states and 280 transitions. Second operand 4 states. [2020-10-23 20:07:25,798 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:07:26,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:07:26,810 INFO L93 Difference]: Finished difference Result 394 states and 442 transitions. [2020-10-23 20:07:26,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:07:26,814 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:07:26,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:07:26,821 INFO L225 Difference]: With dead ends: 394 [2020-10-23 20:07:26,821 INFO L226 Difference]: Without dead ends: 284 [2020-10-23 20:07:26,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:07:26,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-23 20:07:26,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-10-23 20:07:26,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-23 20:07:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-10-23 20:07:26,949 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 149 [2020-10-23 20:07:26,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:07:26,951 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-10-23 20:07:26,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:07:26,951 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-10-23 20:07:26,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 20:07:26,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:07:26,955 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] [2020-10-23 20:07:26,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:07:26,955 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:07:26,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:07:26,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1910652100, now seen corresponding path program 1 times [2020-10-23 20:07:26,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:07:26,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852595780] [2020-10-23 20:07:26,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:07:26,960 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:07:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:27,470 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:07:27,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:07:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:27,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:07:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:27,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:07:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:27,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:07:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:27,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:07:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:27,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:07:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:27,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:07:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:27,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:07:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:27,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:07:27,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852595780] [2020-10-23 20:07:27,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:07:27,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:07:27,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674409527] [2020-10-23 20:07:27,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:07:27,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:07:27,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:07:27,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:07:27,683 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 10 states. [2020-10-23 20:07:28,280 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:07:28,632 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:07:28,960 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:07:29,238 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:07:29,584 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:07:29,870 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:07:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:07:31,670 INFO L93 Difference]: Finished difference Result 440 states and 504 transitions. [2020-10-23 20:07:31,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:07:31,671 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 20:07:31,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:07:31,676 INFO L225 Difference]: With dead ends: 440 [2020-10-23 20:07:31,676 INFO L226 Difference]: Without dead ends: 306 [2020-10-23 20:07:31,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:07:31,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-23 20:07:31,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-10-23 20:07:31,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-23 20:07:31,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 266 transitions. [2020-10-23 20:07:31,782 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 266 transitions. Word has length 162 [2020-10-23 20:07:31,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:07:31,783 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 266 transitions. [2020-10-23 20:07:31,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:07:31,783 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 266 transitions. [2020-10-23 20:07:31,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-23 20:07:31,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:07:31,785 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] [2020-10-23 20:07:31,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:07:31,786 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:07:31,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:07:31,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1346370780, now seen corresponding path program 1 times [2020-10-23 20:07:31,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:07:31,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365141594] [2020-10-23 20:07:31,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:07:31,791 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:07:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,176 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:07:32,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:07:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:07:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:07:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:07:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:07:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:07:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:07:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:07:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:07:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:07:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 20:07:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:32,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:07:32,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365141594] [2020-10-23 20:07:32,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:07:32,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:07:32,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454898629] [2020-10-23 20:07:32,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:07:32,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:07:32,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:07:32,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:07:32,499 INFO L87 Difference]: Start difference. First operand 249 states and 266 transitions. Second operand 15 states. [2020-10-23 20:07:33,144 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:07:33,542 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:07:33,846 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:07:34,163 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:07:34,497 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:07:34,817 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:07:35,524 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:07:37,160 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:07:37,500 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:07:37,996 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:07:38,369 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:07:38,662 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:07:38,968 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:07:39,273 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:07:39,576 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:07:39,881 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:07:40,276 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:07:40,754 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:07:41,080 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:07:41,502 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:07:43,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:07:43,170 INFO L93 Difference]: Finished difference Result 870 states and 1089 transitions. [2020-10-23 20:07:43,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-23 20:07:43,171 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 175 [2020-10-23 20:07:43,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:07:43,180 INFO L225 Difference]: With dead ends: 870 [2020-10-23 20:07:43,180 INFO L226 Difference]: Without dead ends: 736 [2020-10-23 20:07:43,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2020-10-23 20:07:43,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2020-10-23 20:07:43,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 493. [2020-10-23 20:07:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2020-10-23 20:07:43,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 547 transitions. [2020-10-23 20:07:43,474 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 547 transitions. Word has length 175 [2020-10-23 20:07:43,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:07:43,475 INFO L481 AbstractCegarLoop]: Abstraction has 493 states and 547 transitions. [2020-10-23 20:07:43,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:07:43,475 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 547 transitions. [2020-10-23 20:07:43,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-23 20:07:43,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:07:43,479 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, 1, 1, 1] [2020-10-23 20:07:43,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:07:43,480 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:07:43,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:07:43,480 INFO L82 PathProgramCache]: Analyzing trace with hash 149085102, now seen corresponding path program 1 times [2020-10-23 20:07:43,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:07:43,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1617359103] [2020-10-23 20:07:43,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:07:43,485 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:07:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:43,805 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:07:43,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:07:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:43,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:07:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:43,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:07:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:43,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:07:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:43,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:07:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:43,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 20:07:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:43,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:07:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:43,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:07:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:43,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 20:07:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:43,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:07:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:43,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:07:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:44,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 20:07:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:44,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 20:07:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:07:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:07:44,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1617359103] [2020-10-23 20:07:44,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:07:44,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:07:44,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961575122] [2020-10-23 20:07:44,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:07:44,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:07:44,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:07:44,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:07:44,083 INFO L87 Difference]: Start difference. First operand 493 states and 547 transitions. Second operand 7 states. [2020-10-23 20:07:44,676 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:07:45,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:07:45,689 INFO L93 Difference]: Finished difference Result 789 states and 923 transitions. [2020-10-23 20:07:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:07:45,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 185 [2020-10-23 20:07:45,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:07:45,695 INFO L225 Difference]: With dead ends: 789 [2020-10-23 20:07:45,695 INFO L226 Difference]: Without dead ends: 411 [2020-10-23 20:07:45,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:07:45,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-10-23 20:07:45,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 324. [2020-10-23 20:07:45,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-23 20:07:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 341 transitions. [2020-10-23 20:07:45,857 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 341 transitions. Word has length 185 [2020-10-23 20:07:45,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:07:45,857 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 341 transitions. [2020-10-23 20:07:45,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:07:45,858 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 341 transitions. [2020-10-23 20:07:45,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-23 20:07:45,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:07:45,862 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:07:45,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:07:45,862 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:07:45,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:07:45,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1838848469, now seen corresponding path program 1 times [2020-10-23 20:07:45,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:07:45,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119923276] [2020-10-23 20:07:45,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:07:45,991 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:07:46,196 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:07:46,353 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:07:46,506 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:07:46,678 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:07:47,005 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:07:47,170 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:07:47,355 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:07:47,527 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:07:47,686 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:07:47,859 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:07:48,023 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:07:48,190 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:07:50,996 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:53,452 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:53,476 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:55,999 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:57,109 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:59,502 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:08:01,894 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:08:01,901 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:02,806 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:08:02,811 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:05,174 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:08:05,180 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:05,185 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:07,553 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:08:07,558 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:09,973 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:09,978 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:11,161 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:11,166 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:13,574 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:08:13,578 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:15,982 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:08:18,430 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:08:18,437 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:20,833 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:20,836 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:23,258 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:23,263 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:25,619 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:08:25,622 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:26,582 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:08:26,586 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:28,979 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:08:28,982 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:31,349 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:08:31,352 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:33,681 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:08:33,686 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:36,048 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:08:36,052 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:38,442 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:08:38,447 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:40,843 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:08:40,846 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:40,853 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:41,088 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:41,327 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:41,564 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:41,822 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:42,073 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:42,305 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:42,548 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:42,786 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:42,788 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:45,221 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:08:46,240 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:46,244 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:47,352 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:49,719 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:08:49,724 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:52,159 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:52,163 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:54,528 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:08:54,531 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:56,913 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:08:56,919 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:59,370 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:08:59,375 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:59,378 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:59,619 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:08:59,860 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:09:00,098 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:09:00,338 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:09:00,580 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:09:00,829 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:09:01,071 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:09:01,315 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:09:01,319 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:02,407 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-10-23 20:09:04,791 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:09:04,794 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:07,163 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:09:09,539 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:09:11,914 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:09:13,082 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:09:13,086 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:15,437 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:09:16,580 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:09:16,585 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:18,997 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:09:21,390 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:09:23,750 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:09:23,754 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:26,175 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:09:26,178 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:28,590 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:09:28,594 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:31,046 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:09:31,050 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:33,469 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:09:33,472 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:34,726 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:09:34,729 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:34,735 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:37,144 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:09:37,149 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:39,550 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:09:39,553 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:42,000 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-10-23 20:09:44,376 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:09:44,381 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:45,942 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:09:48,366 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:09:48,370 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:50,752 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:09:50,755 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:52,223 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:09:52,226 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:52,229 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:54,665 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:09:54,668 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:57,104 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:09:57,107 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:09:59,586 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:09:59,588 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:01,696 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:10:04,161 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:10:04,164 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:06,636 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:10:06,639 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:09,073 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:10:09,076 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:10:11,502 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:10:11,508 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:11,755 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:10:12,004 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:10:12,260 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:10:12,509 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:10:12,758 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:10:13,008 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:10:13,257 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:10:13,509 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:10:13,511 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:13,751 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:10:13,989 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:10:14,237 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:10:14,474 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:10:14,715 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:10:14,958 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:10:15,200 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:10:15,442 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:10:15,443 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:15,682 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:10:15,919 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:10:16,170 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:10:16,419 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:10:16,667 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:10:16,911 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:10:17,152 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:10:17,394 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:10:17,396 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:17,633 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:10:17,876 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:10:18,129 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:10:18,369 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:10:18,612 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:10:18,850 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:10:19,089 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:10:19,331 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:10:19,333 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:10:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:10:19,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:10:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:10:20,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:10:20,525 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:10:20,525 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:10:20,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:10:20,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:10:20 BoogieIcfgContainer [2020-10-23 20:10:20,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:10:20,569 INFO L168 Benchmark]: Toolchain (without parser) took 181416.38 ms. Allocated memory was 151.0 MB in the beginning and 565.2 MB in the end (delta: 414.2 MB). Free memory was 126.6 MB in the beginning and 471.9 MB in the end (delta: -345.4 MB). Peak memory consumption was 348.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:10:20,573 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 120.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:10:20,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.61 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 104.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:10:20,579 INFO L168 Benchmark]: Boogie Preprocessor took 151.82 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 132.1 MB in the end (delta: -27.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:10:20,579 INFO L168 Benchmark]: RCFGBuilder took 1354.80 ms. Allocated memory is still 151.0 MB. Free memory was 132.1 MB in the beginning and 87.9 MB in the end (delta: 44.2 MB). Peak memory consumption was 64.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:10:20,580 INFO L168 Benchmark]: TraceAbstraction took 179183.35 ms. Allocated memory was 151.0 MB in the beginning and 565.2 MB in the end (delta: 414.2 MB). Free memory was 87.3 MB in the beginning and 471.9 MB in the end (delta: -384.6 MB). Peak memory consumption was 308.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:10:20,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 120.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 709.61 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 104.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 151.82 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 132.1 MB in the end (delta: -27.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1354.80 ms. Allocated memory is still 151.0 MB. Free memory was 132.1 MB in the beginning and 87.9 MB in the end (delta: 44.2 MB). Peak memory consumption was 64.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 179183.35 ms. Allocated memory was 151.0 MB in the beginning and 565.2 MB in the end (delta: 414.2 MB). Free memory was 87.3 MB in the beginning and 471.9 MB in the end (delta: -384.6 MB). Peak memory consumption was 308.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L171] int pumpRunning = 0; [L172] int systemActive = 1; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L808] int cleanupTimeShifts = 4; [L884] int retValue_acc ; [L885] int tmp ; [L889] FCALL select_helpers() [L890] FCALL select_features() [L891] CALL, EXPR valid_product() [L933] int retValue_acc ; [L936] retValue_acc = 1 [L937] return (retValue_acc); [L891] RET, EXPR valid_product() [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) [L895] FCALL setup() [L896] CALL runTest() [L875] CALL test() [L376] int splverifierCounter ; [L377] int tmp ; [L378] int tmp___0 ; [L379] int tmp___1 ; [L380] int tmp___2 ; [L383] splverifierCounter = 0 [L385] COND TRUE 1 [L387] COND TRUE splverifierCounter < 4 [L393] tmp = __VERIFIER_nondet_int() [L395] COND TRUE \read(tmp) [L397] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L397] RET waterRise() [L403] tmp___0 = __VERIFIER_nondet_int() [L405] COND FALSE !(\read(tmp___0)) [L413] tmp___2 = __VERIFIER_nondet_int() [L415] COND TRUE \read(tmp___2) [L417] CALL startSystem() [L369] systemActive = 1 [L417] RET startSystem() [L430] CALL timeShift() [L178] COND FALSE !(\read(pumpRunning)) [L185] COND TRUE \read(systemActive) [L187] CALL processEnvironment() [L233] int tmp ; [L236] COND FALSE !(\read(pumpRunning)) [L251] CALL processEnvironment__wrappee__methaneQuery() [L207] int tmp ; [L210] COND FALSE !(\read(pumpRunning)) [L225] FCALL processEnvironment__wrappee__base() [L251] RET processEnvironment__wrappee__methaneQuery() [L187] RET processEnvironment() [L193] CALL __utac_acc__Specification4_spec__1() [L141] int tmp ; [L142] int tmp___0 ; [L146] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L146] RET, EXPR getWaterLevel() [L146] tmp = getWaterLevel() [L148] COND FALSE !(tmp == 0) [L193] RET __utac_acc__Specification4_spec__1() [L430] RET timeShift() [L385] COND TRUE 1 [L387] COND TRUE splverifierCounter < 4 [L393] tmp = __VERIFIER_nondet_int() [L395] COND TRUE \read(tmp) [L397] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L397] RET waterRise() [L403] tmp___0 = __VERIFIER_nondet_int() [L405] COND FALSE !(\read(tmp___0)) [L413] tmp___2 = __VERIFIER_nondet_int() [L415] COND TRUE \read(tmp___2) [L417] CALL startSystem() [L369] systemActive = 1 [L417] RET startSystem() [L430] CALL timeShift() [L178] COND FALSE !(\read(pumpRunning)) [L185] COND TRUE \read(systemActive) [L187] CALL processEnvironment() [L233] int tmp ; [L236] COND FALSE !(\read(pumpRunning)) [L251] CALL processEnvironment__wrappee__methaneQuery() [L207] int tmp ; [L210] COND FALSE !(\read(pumpRunning)) [L225] FCALL processEnvironment__wrappee__base() [L251] RET processEnvironment__wrappee__methaneQuery() [L187] RET processEnvironment() [L193] CALL __utac_acc__Specification4_spec__1() [L141] int tmp ; [L142] int tmp___0 ; [L146] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L146] RET, EXPR getWaterLevel() [L146] tmp = getWaterLevel() [L148] COND TRUE tmp == 0 [L150] CALL, EXPR isPumpRunning() [L302] int retValue_acc ; [L305] retValue_acc = pumpRunning [L306] return (retValue_acc); [L150] RET, EXPR isPumpRunning() [L150] tmp___0 = isPumpRunning() [L152] COND TRUE \read(tmp___0) [L154] CALL __automaton_fail() [L946] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product30.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 641 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 179.0s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1125 SDtfs, 2847 SDslu, 1986 SDs, 0 SdLazy, 4194 SolverSat, 1044 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=493occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 464 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...