/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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:12:24,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:12:24,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:12:24,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:12:24,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:12:24,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:12:24,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:12:24,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:12:24,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:12:24,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:12:24,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:12:24,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:12:24,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:12:24,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:12:24,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:12:24,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:12:24,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:12:24,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:12:24,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:12:24,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:12:24,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:12:24,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:12:24,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:12:24,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:12:24,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:12:24,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:12:24,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:12:24,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:12:24,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:12:24,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:12:24,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:12:24,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:12:24,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:12:24,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:12:24,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:12:24,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:12:24,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:12:24,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:12:24,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:12:24,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:12:24,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:12:24,424 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 20:12:24,440 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:12:24,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:12:24,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:12:24,445 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:12:24,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:12:24,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:12:24,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:12:24,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:12:24,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:12:24,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:12:24,447 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:12:24,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:12:24,448 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:12:24,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:12:24,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:12:24,448 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:12:24,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:12:24,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:12:24,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:12:24,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:12:24,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:12:24,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:12:24,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:12:24,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:12:24,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:12:24,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:12:24,840 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:12:24,841 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:12:24,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-10-23 20:12:24,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7c73a2c/999043abe57c4b9eadaf72f6cb52524a/FLAGd2a588d2e [2020-10-23 20:12:25,706 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:12:25,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-10-23 20:12:25,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7c73a2c/999043abe57c4b9eadaf72f6cb52524a/FLAGd2a588d2e [2020-10-23 20:12:26,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7c73a2c/999043abe57c4b9eadaf72f6cb52524a [2020-10-23 20:12:26,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:12:26,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:12:26,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:12:26,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:12:26,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:12:26,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:12:26" (1/1) ... [2020-10-23 20:12:26,045 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 08:12:26, skipping insertion in model container [2020-10-23 20:12:26,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:12:26" (1/1) ... [2020-10-23 20:12:26,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:12:26,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:12:26,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:12:26,585 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:12:26,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:12:26,717 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:12:26,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:26 WrapperNode [2020-10-23 20:12:26,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:12:26,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:12:26,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:12:26,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:12:26,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:26" (1/1) ... [2020-10-23 20:12:26,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:26" (1/1) ... [2020-10-23 20:12:26,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:26" (1/1) ... [2020-10-23 20:12:26,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:26" (1/1) ... [2020-10-23 20:12:26,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:26" (1/1) ... [2020-10-23 20:12:26,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:26" (1/1) ... [2020-10-23 20:12:26,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:26" (1/1) ... [2020-10-23 20:12:26,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:12:26,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:12:26,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:12:26,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:12:26,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:26" (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 20:12:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:12:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:12:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:12:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:12:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:12:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:12:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:12:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:12:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:12:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:12:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:12:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:12:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:12:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:12:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:12:26,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:12:26,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:12:26,979 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:12:26,980 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:12:26,980 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:12:26,981 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:12:26,981 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:12:26,983 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:12:26,983 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:12:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:12:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:12:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:12:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:12:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:12:26,984 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:12:26,985 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:12:26,985 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:12:26,985 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:12:26,985 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:12:26,985 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:12:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:12:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:12:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:12:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:12:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:12:26,987 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:12:26,987 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:12:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:12:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:12:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:12:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:12:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:12:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:12:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:12:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:12:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:12:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:12:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:12:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:12:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:12:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:12:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:12:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:12:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:12:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:12:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:12:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:12:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:12:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:12:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:12:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:12:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:12:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:12:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:12:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:12:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:12:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:12:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:12:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:12:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:12:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:12:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:12:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:12:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:12:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:12:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:12:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:12:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:12:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:12:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:12:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:12:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:12:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:12:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:12:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:12:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:12:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:12:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:12:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:12:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:12:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:12:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:12:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:12:28,112 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:12:28,112 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:12:28,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:12:28 BoogieIcfgContainer [2020-10-23 20:12:28,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:12:28,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:12:28,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:12:28,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:12:28,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:12:26" (1/3) ... [2020-10-23 20:12:28,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509084f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:12:28, skipping insertion in model container [2020-10-23 20:12:28,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:26" (2/3) ... [2020-10-23 20:12:28,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509084f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:12:28, skipping insertion in model container [2020-10-23 20:12:28,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:12:28" (3/3) ... [2020-10-23 20:12:28,125 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2020-10-23 20:12:28,137 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:12:28,143 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:12:28,156 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:12:28,181 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:12:28,181 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:12:28,181 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:12:28,181 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:12:28,181 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:12:28,181 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:12:28,182 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:12:28,182 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:12:28,204 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-10-23 20:12:28,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:12:28,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:28,225 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 20:12:28,225 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 20:12:28,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:28,232 INFO L82 PathProgramCache]: Analyzing trace with hash 115400344, now seen corresponding path program 1 times [2020-10-23 20:12:28,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:28,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731712645] [2020-10-23 20:12:28,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:28,323 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:29,103 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:29,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:29,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:29,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:29,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:29,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:29,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:12:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:29,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:12:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:29,265 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 20:12:29,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731712645] [2020-10-23 20:12:29,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:29,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:12:29,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446129675] [2020-10-23 20:12:29,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:12:29,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:29,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:12:29,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:12:29,301 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 3 states. [2020-10-23 20:12:31,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:31,039 INFO L93 Difference]: Finished difference Result 508 states and 601 transitions. [2020-10-23 20:12:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:12:31,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:12:31,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:31,061 INFO L225 Difference]: With dead ends: 508 [2020-10-23 20:12:31,061 INFO L226 Difference]: Without dead ends: 313 [2020-10-23 20:12:31,073 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 20:12:31,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-10-23 20:12:31,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 271. [2020-10-23 20:12:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-23 20:12:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 293 transitions. [2020-10-23 20:12:31,328 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 293 transitions. Word has length 148 [2020-10-23 20:12:31,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:31,330 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 293 transitions. [2020-10-23 20:12:31,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:12:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 293 transitions. [2020-10-23 20:12:31,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:12:31,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:31,347 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 20:12:31,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:12:31,348 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 20:12:31,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:31,350 INFO L82 PathProgramCache]: Analyzing trace with hash -979950361, now seen corresponding path program 1 times [2020-10-23 20:12:31,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:31,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024296365] [2020-10-23 20:12:31,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:31,360 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:31,885 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:31,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:31,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:31,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:31,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:31,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:31,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:12:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:31,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:12:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:32,027 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 20:12:32,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024296365] [2020-10-23 20:12:32,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:32,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:12:32,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353253048] [2020-10-23 20:12:32,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:12:32,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:32,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:12:32,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:12:32,032 INFO L87 Difference]: Start difference. First operand 271 states and 293 transitions. Second operand 4 states. [2020-10-23 20:12:32,823 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:34,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:34,053 INFO L93 Difference]: Finished difference Result 418 states and 468 transitions. [2020-10-23 20:12:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:12:34,054 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:12:34,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:34,060 INFO L225 Difference]: With dead ends: 418 [2020-10-23 20:12:34,061 INFO L226 Difference]: Without dead ends: 296 [2020-10-23 20:12:34,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:12:34,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-23 20:12:34,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 261. [2020-10-23 20:12:34,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-23 20:12:34,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 280 transitions. [2020-10-23 20:12:34,169 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 280 transitions. Word has length 149 [2020-10-23 20:12:34,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:34,170 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 280 transitions. [2020-10-23 20:12:34,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:12:34,170 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 280 transitions. [2020-10-23 20:12:34,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 20:12:34,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:34,175 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 20:12:34,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:12:34,175 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 20:12:34,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:34,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1746087505, now seen corresponding path program 1 times [2020-10-23 20:12:34,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:34,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510092681] [2020-10-23 20:12:34,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:34,182 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:34,795 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:34,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:34,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:34,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:34,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:34,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:34,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:12:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:34,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:12:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:34,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:12:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:34,978 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 20:12:34,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510092681] [2020-10-23 20:12:34,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:34,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:12:34,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041524057] [2020-10-23 20:12:34,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:12:34,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:34,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:12:34,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:12:34,983 INFO L87 Difference]: Start difference. First operand 261 states and 280 transitions. Second operand 10 states. [2020-10-23 20:12:35,644 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:36,115 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:36,527 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:12:36,899 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:37,295 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:37,681 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:39,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:39,648 INFO L93 Difference]: Finished difference Result 464 states and 530 transitions. [2020-10-23 20:12:39,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:12:39,652 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 20:12:39,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:39,657 INFO L225 Difference]: With dead ends: 464 [2020-10-23 20:12:39,657 INFO L226 Difference]: Without dead ends: 318 [2020-10-23 20:12:39,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:12:39,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-23 20:12:39,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 261. [2020-10-23 20:12:39,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-23 20:12:39,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 279 transitions. [2020-10-23 20:12:39,766 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 279 transitions. Word has length 162 [2020-10-23 20:12:39,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:39,767 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 279 transitions. [2020-10-23 20:12:39,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:12:39,767 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 279 transitions. [2020-10-23 20:12:39,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-23 20:12:39,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:39,770 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 20:12:39,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:12:39,771 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 20:12:39,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:39,771 INFO L82 PathProgramCache]: Analyzing trace with hash 342483546, now seen corresponding path program 1 times [2020-10-23 20:12:39,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:39,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301084854] [2020-10-23 20:12:39,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:39,775 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,179 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:40,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:12:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:12:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:12:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:12:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:12:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 20:12:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:40,344 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 20:12:40,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301084854] [2020-10-23 20:12:40,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:40,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:12:40,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601785447] [2020-10-23 20:12:40,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:12:40,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:40,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:12:40,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:12:40,347 INFO L87 Difference]: Start difference. First operand 261 states and 279 transitions. Second operand 7 states. [2020-10-23 20:12:40,949 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:42,940 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:44,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:44,072 INFO L93 Difference]: Finished difference Result 646 states and 762 transitions. [2020-10-23 20:12:44,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 20:12:44,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-10-23 20:12:44,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:44,079 INFO L225 Difference]: With dead ends: 646 [2020-10-23 20:12:44,079 INFO L226 Difference]: Without dead ends: 500 [2020-10-23 20:12:44,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:12:44,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-10-23 20:12:44,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 371. [2020-10-23 20:12:44,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-10-23 20:12:44,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 398 transitions. [2020-10-23 20:12:44,225 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 398 transitions. Word has length 175 [2020-10-23 20:12:44,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:44,225 INFO L481 AbstractCegarLoop]: Abstraction has 371 states and 398 transitions. [2020-10-23 20:12:44,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:12:44,226 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 398 transitions. [2020-10-23 20:12:44,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-23 20:12:44,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:44,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:12:44,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:12:44,229 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 20:12:44,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:44,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1245370343, now seen corresponding path program 1 times [2020-10-23 20:12:44,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:44,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949201039] [2020-10-23 20:12:44,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:44,234 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,662 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:44,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:12:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:12:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:12:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:12:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:12:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:12:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-23 20:12:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-23 20:12:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:44,979 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 20:12:44,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949201039] [2020-10-23 20:12:44,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:44,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:12:44,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743079984] [2020-10-23 20:12:44,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:12:44,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:44,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:12:44,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:12:44,985 INFO L87 Difference]: Start difference. First operand 371 states and 398 transitions. Second operand 15 states. [2020-10-23 20:12:45,657 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:46,163 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:46,584 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:12:46,990 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:47,377 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:47,743 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:48,569 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:50,205 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:50,586 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:50,988 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:51,377 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:51,749 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:12:52,118 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:12:52,485 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:52,897 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:53,307 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:12:53,698 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:56,099 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:56,487 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:56,951 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:57,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:57,990 INFO L93 Difference]: Finished difference Result 1299 states and 1632 transitions. [2020-10-23 20:12:57,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-23 20:12:57,991 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 199 [2020-10-23 20:12:57,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:57,998 INFO L225 Difference]: With dead ends: 1299 [2020-10-23 20:12:57,999 INFO L226 Difference]: Without dead ends: 1043 [2020-10-23 20:12:58,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2020-10-23 20:12:58,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2020-10-23 20:12:58,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 744. [2020-10-23 20:12:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-23 20:12:58,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 825 transitions. [2020-10-23 20:12:58,333 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 825 transitions. Word has length 199 [2020-10-23 20:12:58,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:58,333 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 825 transitions. [2020-10-23 20:12:58,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:12:58,333 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 825 transitions. [2020-10-23 20:12:58,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-23 20:12:58,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:58,340 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, 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 20:12:58,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:12:58,341 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 20:12:58,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:58,341 INFO L82 PathProgramCache]: Analyzing trace with hash -2056457373, now seen corresponding path program 1 times [2020-10-23 20:12:58,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:58,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498965190] [2020-10-23 20:12:58,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:58,658 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-10-23 20:12:59,053 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-10-23 20:12:59,424 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-10-23 20:12:59,775 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-10-23 20:13:00,139 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-10-23 20:13:00,492 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-10-23 20:13:00,847 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-10-23 20:13:01,194 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-10-23 20:13:01,542 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-10-23 20:13:01,898 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-10-23 20:13:02,261 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-10-23 20:13:02,605 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2020-10-23 20:13:02,966 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2020-10-23 20:13:03,318 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2020-10-23 20:13:03,929 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 140 [2020-10-23 20:13:04,413 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:13:04,870 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:13:05,293 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:13:05,793 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:13:06,222 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 140 [2020-10-23 20:13:06,665 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 140 [2020-10-23 20:13:07,103 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 140 [2020-10-23 20:13:07,107 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:10,131 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 206 [2020-10-23 20:13:10,148 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:11,515 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 208 [2020-10-23 20:13:11,522 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:14,227 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 206 [2020-10-23 20:13:14,235 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:16,949 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 206 [2020-10-23 20:13:16,955 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:18,278 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 208 [2020-10-23 20:13:18,284 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:21,019 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 208 [2020-10-23 20:13:21,027 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:22,399 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 208 [2020-10-23 20:13:25,127 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 206 [2020-10-23 20:13:25,133 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:25,139 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:27,797 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 196 [2020-10-23 20:13:27,802 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:30,449 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 196 [2020-10-23 20:13:30,454 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:33,091 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 196 [2020-10-23 20:13:33,102 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:34,429 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 198 [2020-10-23 20:13:34,434 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:37,110 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 197 [2020-10-23 20:13:37,114 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:39,790 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-10-23 20:13:39,796 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:42,492 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 198 [2020-10-23 20:13:42,496 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:43,781 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 198 [2020-10-23 20:13:43,787 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:43,791 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:46,432 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 200 [2020-10-23 20:13:46,440 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:49,061 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 200 [2020-10-23 20:13:49,066 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:51,768 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:13:51,773 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:54,419 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 200 [2020-10-23 20:13:54,424 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:56,095 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:13:56,102 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:57,704 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:13:57,709 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:00,405 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:14:00,410 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:03,051 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 200 [2020-10-23 20:14:03,058 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:05,775 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-10-23 20:14:05,779 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:08,471 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-10-23 20:14:08,476 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:10,481 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 199 [2020-10-23 20:14:10,487 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:13,194 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-10-23 20:14:13,200 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:16,012 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 199 [2020-10-23 20:14:16,018 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:17,803 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 198 [2020-10-23 20:14:17,808 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:20,573 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 199 [2020-10-23 20:14:20,577 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:23,275 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-10-23 20:14:23,278 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:23,282 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:23,767 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 140 [2020-10-23 20:14:24,246 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 140 [2020-10-23 20:14:24,770 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:14:25,266 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 140 [2020-10-23 20:14:25,758 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 140 [2020-10-23 20:14:26,302 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:14:26,799 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:14:27,296 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:14:27,299 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:29,003 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 212 [2020-10-23 20:14:29,006 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:31,755 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 210 [2020-10-23 20:14:31,760 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:33,423 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 212 [2020-10-23 20:14:33,427 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:36,233 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 212 [2020-10-23 20:14:36,237 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:39,060 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 210 [2020-10-23 20:14:39,064 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:41,884 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 212 [2020-10-23 20:14:41,888 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:44,638 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 210 [2020-10-23 20:14:44,642 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:47,424 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 210 [2020-10-23 20:14:47,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:47,433 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:47,920 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 140 [2020-10-23 20:14:48,406 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 140 [2020-10-23 20:14:48,884 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 140 [2020-10-23 20:14:49,365 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 140 [2020-10-23 20:14:49,873 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:14:50,400 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:14:50,898 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:14:51,404 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-10-23 20:14:51,407 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:54,204 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:14:54,208 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:56,990 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:14:56,993 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:59,712 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:14:59,715 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:02,445 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:15:02,449 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:04,495 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:15:04,498 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:07,060 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:15:07,063 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:09,805 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:15:12,528 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2020-10-23 20:15:12,534 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:15,396 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:15:15,400 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:18,315 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 207 [2020-10-23 20:15:18,318 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:21,161 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:15:21,165 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:24,059 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 207 [2020-10-23 20:15:24,065 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:26,071 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 207 [2020-10-23 20:15:26,074 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:28,907 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:15:28,912 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:31,781 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2020-10-23 20:15:31,785 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:34,661 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 207 [2020-10-23 20:15:34,663 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:34,666 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:37,511 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:15:37,515 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:40,324 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:15:40,328 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:42,601 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-23 20:15:42,606 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:44,767 WARN L193 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-23 20:15:47,592 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:15:47,595 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:50,396 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:15:50,399 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:53,348 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-23 20:15:53,353 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:55,815 WARN L193 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-23 20:15:55,819 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:55,823 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:56,357 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2020-10-23 20:15:56,864 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135 [2020-10-23 20:15:57,366 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135 [2020-10-23 20:15:57,867 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-23 20:15:58,413 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2020-10-23 20:15:58,945 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-10-23 20:15:59,475 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2020-10-23 20:15:59,972 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-23 20:15:59,974 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:00,525 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-10-23 20:16:01,060 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2020-10-23 20:16:01,585 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2020-10-23 20:16:02,084 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135 [2020-10-23 20:16:02,596 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-23 20:16:03,114 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-10-23 20:16:03,640 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2020-10-23 20:16:04,144 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135 [2020-10-23 20:16:04,146 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:04,663 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 136 [2020-10-23 20:16:05,171 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 137 [2020-10-23 20:16:05,661 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 137 [2020-10-23 20:16:06,190 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144 [2020-10-23 20:16:06,731 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144 [2020-10-23 20:16:07,279 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144 [2020-10-23 20:16:07,795 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 136 [2020-10-23 20:16:08,341 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 143 [2020-10-23 20:16:08,344 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:16:09,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:16:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:16:09,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:16:09,549 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:16:09,550 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:16:09,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:16:09,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:16:09 BoogieIcfgContainer [2020-10-23 20:16:09,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:16:09,602 INFO L168 Benchmark]: Toolchain (without parser) took 223577.28 ms. Allocated memory was 151.0 MB in the beginning and 518.0 MB in the end (delta: 367.0 MB). Free memory was 125.1 MB in the beginning and 461.7 MB in the end (delta: -336.6 MB). Peak memory consumption was 327.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:09,603 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:16:09,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.08 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 103.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:09,609 INFO L168 Benchmark]: Boogie Preprocessor took 111.04 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 99.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:09,610 INFO L168 Benchmark]: RCFGBuilder took 1284.33 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 99.0 MB in the beginning and 117.0 MB in the end (delta: -18.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:09,610 INFO L168 Benchmark]: TraceAbstraction took 221479.69 ms. Allocated memory was 187.7 MB in the beginning and 518.0 MB in the end (delta: 330.3 MB). Free memory was 116.5 MB in the beginning and 461.7 MB in the end (delta: -345.2 MB). Peak memory consumption was 280.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:16:09,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 687.08 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 103.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 111.04 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 99.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1284.33 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 99.0 MB in the beginning and 117.0 MB in the end (delta: -18.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 221479.69 ms. Allocated memory was 187.7 MB in the beginning and 518.0 MB in the end (delta: 330.3 MB). Free memory was 116.5 MB in the beginning and 461.7 MB in the end (delta: -345.2 MB). Peak memory consumption was 280.8 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L437] int cleanupTimeShifts = 4; [L590] int waterLevel = 1; [L591] int methaneLevelCritical = 0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L576] int retValue_acc ; [L579] retValue_acc = 1 [L580] return (retValue_acc); [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L509] CALL test() [L902] int splverifierCounter ; [L903] int tmp ; [L904] int tmp___0 ; [L905] int tmp___1 ; [L906] int tmp___2 ; [L909] splverifierCounter = 0 [L911] COND TRUE 1 [L913] COND TRUE splverifierCounter < 4 [L919] tmp = __VERIFIER_nondet_int() [L921] COND TRUE \read(tmp) [L923] CALL waterRise() [L608] COND TRUE waterLevel < 2 [L609] waterLevel = waterLevel + 1 [L923] RET waterRise() [L929] tmp___0 = __VERIFIER_nondet_int() [L931] COND FALSE !(\read(tmp___0)) [L939] tmp___2 = __VERIFIER_nondet_int() [L941] COND TRUE \read(tmp___2) [L943] CALL startSystem() [L896] systemActive = 1 [L943] RET startSystem() [L956] CALL timeShift() [L703] COND FALSE !(\read(pumpRunning)) [L710] COND TRUE \read(systemActive) [L712] CALL processEnvironment() [L758] int tmp ; [L761] COND FALSE !(\read(pumpRunning)) [L776] CALL processEnvironment__wrappee__highWaterSensor() [L732] int tmp ; [L735] COND TRUE ! pumpRunning [L737] CALL, EXPR isHighWaterLevel() [L855] int retValue_acc ; [L856] int tmp ; [L857] int tmp___0 ; [L861] CALL, EXPR isHighWaterSensorDry() [L670] int retValue_acc ; [L673] COND TRUE waterLevel < 2 [L674] retValue_acc = 1 [L675] return (retValue_acc); [L861] RET, EXPR isHighWaterSensorDry() [L861] tmp = isHighWaterSensorDry() [L863] COND TRUE \read(tmp) [L864] tmp___0 = 0 [L868] retValue_acc = tmp___0 [L869] return (retValue_acc); [L737] RET, EXPR isHighWaterLevel() [L737] tmp = isHighWaterLevel() [L739] COND FALSE !(\read(tmp)) [L745] FCALL processEnvironment__wrappee__base() [L776] RET processEnvironment__wrappee__highWaterSensor() [L712] RET processEnvironment() [L718] CALL __utac_acc__Specification4_spec__1() [L412] int tmp ; [L413] int tmp___0 ; [L417] CALL, EXPR getWaterLevel() [L661] int retValue_acc ; [L664] retValue_acc = waterLevel [L665] return (retValue_acc); [L417] RET, EXPR getWaterLevel() [L417] tmp = getWaterLevel() [L419] COND FALSE !(tmp == 0) [L718] RET __utac_acc__Specification4_spec__1() [L956] RET timeShift() [L911] COND TRUE 1 [L913] COND TRUE splverifierCounter < 4 [L919] tmp = __VERIFIER_nondet_int() [L921] COND TRUE \read(tmp) [L923] CALL waterRise() [L608] COND TRUE waterLevel < 2 [L609] waterLevel = waterLevel + 1 [L923] RET waterRise() [L929] tmp___0 = __VERIFIER_nondet_int() [L931] COND FALSE !(\read(tmp___0)) [L939] tmp___2 = __VERIFIER_nondet_int() [L941] COND TRUE \read(tmp___2) [L943] CALL startSystem() [L896] systemActive = 1 [L943] RET startSystem() [L956] CALL timeShift() [L703] COND FALSE !(\read(pumpRunning)) [L710] COND TRUE \read(systemActive) [L712] CALL processEnvironment() [L758] int tmp ; [L761] COND FALSE !(\read(pumpRunning)) [L776] CALL processEnvironment__wrappee__highWaterSensor() [L732] int tmp ; [L735] COND TRUE ! pumpRunning [L737] CALL, EXPR isHighWaterLevel() [L855] int retValue_acc ; [L856] int tmp ; [L857] int tmp___0 ; [L861] CALL, EXPR isHighWaterSensorDry() [L670] int retValue_acc ; [L673] COND TRUE waterLevel < 2 [L674] retValue_acc = 1 [L675] return (retValue_acc); [L861] RET, EXPR isHighWaterSensorDry() [L861] tmp = isHighWaterSensorDry() [L863] COND TRUE \read(tmp) [L864] tmp___0 = 0 [L868] retValue_acc = tmp___0 [L869] return (retValue_acc); [L737] RET, EXPR isHighWaterLevel() [L737] tmp = isHighWaterLevel() [L739] COND FALSE !(\read(tmp)) [L745] FCALL processEnvironment__wrappee__base() [L776] RET processEnvironment__wrappee__highWaterSensor() [L712] RET processEnvironment() [L718] CALL __utac_acc__Specification4_spec__1() [L412] int tmp ; [L413] int tmp___0 ; [L417] CALL, EXPR getWaterLevel() [L661] int retValue_acc ; [L664] retValue_acc = waterLevel [L665] return (retValue_acc); [L417] RET, EXPR getWaterLevel() [L417] tmp = getWaterLevel() [L419] COND TRUE tmp == 0 [L421] CALL, EXPR isPumpRunning() [L810] int retValue_acc ; [L813] retValue_acc = pumpRunning [L814] return (retValue_acc); [L421] RET, EXPR isPumpRunning() [L421] tmp___0 = isPumpRunning() [L423] COND TRUE \read(tmp___0) [L425] CALL __automaton_fail() [L545] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product50.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 654 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 221.3s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 25.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1311 SDtfs, 2876 SDslu, 2253 SDs, 0 SdLazy, 5149 SolverSat, 1049 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=744occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 562 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...