/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 15:31:24,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 15:31:24,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 15:31:24,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 15:31:24,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 15:31:24,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 15:31:24,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 15:31:24,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 15:31:24,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 15:31:24,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 15:31:24,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 15:31:24,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 15:31:24,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 15:31:24,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 15:31:24,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 15:31:24,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 15:31:24,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 15:31:24,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 15:31:24,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 15:31:24,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 15:31:24,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 15:31:24,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 15:31:24,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 15:31:24,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 15:31:24,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 15:31:24,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 15:31:24,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 15:31:24,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 15:31:24,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 15:31:24,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 15:31:24,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 15:31:24,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 15:31:24,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 15:31:24,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 15:31:24,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 15:31:24,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 15:31:24,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 15:31:24,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 15:31:24,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 15:31:24,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 15:31:24,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 15:31:24,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 15:31:24,438 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 15:31:24,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 15:31:24,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 15:31:24,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 15:31:24,444 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 15:31:24,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 15:31:24,444 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 15:31:24,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 15:31:24,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 15:31:24,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 15:31:24,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 15:31:24,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 15:31:24,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 15:31:24,447 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 15:31:24,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 15:31:24,447 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 15:31:24,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 15:31:24,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 15:31:24,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 15:31:24,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 15:31:24,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 15:31:24,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 15:31:24,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 15:31:24,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 15:31:24,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 15:31:24,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 15:31:24,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 15:31:24,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 15:31:24,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 15:31:24,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 15:31:24,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 15:31:24,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 15:31:24,847 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 15:31:24,850 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 15:31:24,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2021-02-21 15:31:24,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d25998853/f067a08762d34a13b7dde2330ec40c8d/FLAG8bf9b1d43 [2021-02-21 15:31:25,719 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 15:31:25,720 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2021-02-21 15:31:25,743 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d25998853/f067a08762d34a13b7dde2330ec40c8d/FLAG8bf9b1d43 [2021-02-21 15:31:26,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d25998853/f067a08762d34a13b7dde2330ec40c8d [2021-02-21 15:31:26,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 15:31:26,021 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 15:31:26,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 15:31:26,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 15:31:26,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 15:31:26,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:31:26" (1/1) ... [2021-02-21 15:31:26,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28874de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:26, skipping insertion in model container [2021-02-21 15:31:26,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:31:26" (1/1) ... [2021-02-21 15:31:26,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 15:31:26,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 15:31:26,296 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c[2660,2673] [2021-02-21 15:31:26,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:31:26,474 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 15:31:26,532 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c[2660,2673] [2021-02-21 15:31:26,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:31:26,646 INFO L208 MainTranslator]: Completed translation [2021-02-21 15:31:26,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:26 WrapperNode [2021-02-21 15:31:26,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 15:31:26,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 15:31:26,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 15:31:26,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 15:31:26,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:26" (1/1) ... [2021-02-21 15:31:26,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:26" (1/1) ... [2021-02-21 15:31:26,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:26" (1/1) ... [2021-02-21 15:31:26,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:26" (1/1) ... [2021-02-21 15:31:26,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:26" (1/1) ... [2021-02-21 15:31:26,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:26" (1/1) ... [2021-02-21 15:31:26,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:26" (1/1) ... [2021-02-21 15:31:26,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 15:31:26,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 15:31:26,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 15:31:26,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 15:31:26,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:26" (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 [2021-02-21 15:31:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 15:31:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 15:31:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-21 15:31:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 15:31:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-21 15:31:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-21 15:31:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-21 15:31:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-21 15:31:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-21 15:31:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-21 15:31:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-21 15:31:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-21 15:31:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-21 15:31:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-21 15:31:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-21 15:31:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-21 15:31:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 15:31:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-21 15:31:26,888 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-21 15:31:26,888 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-21 15:31:26,888 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-21 15:31:26,888 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-21 15:31:26,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-21 15:31:26,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-21 15:31:26,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-21 15:31:26,894 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-21 15:31:26,895 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-21 15:31:26,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-21 15:31:26,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-21 15:31:26,895 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-21 15:31:26,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-21 15:31:26,895 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-21 15:31:26,895 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-21 15:31:26,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-21 15:31:26,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-21 15:31:26,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-21 15:31:26,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-21 15:31:26,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-21 15:31:26,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-21 15:31:26,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-21 15:31:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 15:31:26,899 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 15:31:26,899 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 15:31:26,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 15:31:26,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 15:31:26,900 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-21 15:31:26,900 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-21 15:31:26,900 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-21 15:31:26,900 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-21 15:31:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-21 15:31:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-21 15:31:26,904 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-21 15:31:26,904 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-21 15:31:26,904 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-21 15:31:26,905 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-21 15:31:26,905 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-21 15:31:26,905 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-21 15:31:26,905 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-21 15:31:26,905 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-21 15:31:26,905 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-21 15:31:26,906 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-21 15:31:26,906 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-21 15:31:26,908 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-21 15:31:26,908 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-21 15:31:26,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 15:31:26,909 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-21 15:31:26,909 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-21 15:31:26,909 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-21 15:31:26,909 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-21 15:31:26,909 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-21 15:31:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-21 15:31:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-21 15:31:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-21 15:31:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-21 15:31:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-21 15:31:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-21 15:31:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 15:31:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 15:31:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-21 15:31:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 15:31:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 15:31:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 15:31:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 15:31:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-21 15:31:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 15:31:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-21 15:31:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-21 15:31:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 15:31:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-21 15:31:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-21 15:31:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-21 15:31:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 15:31:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 15:31:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 15:31:28,264 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 15:31:28,265 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 15:31:28,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:31:28 BoogieIcfgContainer [2021-02-21 15:31:28,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 15:31:28,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 15:31:28,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 15:31:28,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 15:31:28,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:31:26" (1/3) ... [2021-02-21 15:31:28,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1705fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:31:28, skipping insertion in model container [2021-02-21 15:31:28,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:26" (2/3) ... [2021-02-21 15:31:28,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1705fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:31:28, skipping insertion in model container [2021-02-21 15:31:28,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:31:28" (3/3) ... [2021-02-21 15:31:28,276 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2021-02-21 15:31:28,283 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 15:31:28,310 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 15:31:28,330 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 15:31:28,359 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 15:31:28,359 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 15:31:28,359 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 15:31:28,359 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 15:31:28,360 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 15:31:28,360 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 15:31:28,360 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 15:31:28,360 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 15:31:28,384 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2021-02-21 15:31:28,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-21 15:31:28,395 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:31:28,396 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] [2021-02-21 15:31:28,396 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:31:28,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:31:28,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1840447875, now seen corresponding path program 1 times [2021-02-21 15:31:28,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:31:28,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495267645] [2021-02-21 15:31:28,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:31:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:28,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:28,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:28,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:28,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:29,532 WARN L202 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:31:29,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:31:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:29,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:29,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:29,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:31:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:29,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:29,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:29,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:31:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:29,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:29,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:29,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:31:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:29,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:29,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:29,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:31:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:29,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:29,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:29,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-21 15:31:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:29,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:29,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:29,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 15:31:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:29,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:29,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:29,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-21 15:31:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:29,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:29,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:29,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:31:29,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495267645] [2021-02-21 15:31:29,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:31:29,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 15:31:29,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463650602] [2021-02-21 15:31:29,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 15:31:29,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:31:29,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 15:31:29,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 15:31:29,688 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 3 states. [2021-02-21 15:31:31,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:31:31,718 INFO L93 Difference]: Finished difference Result 300 states and 394 transitions. [2021-02-21 15:31:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 15:31:31,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-21 15:31:31,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:31:31,735 INFO L225 Difference]: With dead ends: 300 [2021-02-21 15:31:31,735 INFO L226 Difference]: Without dead ends: 162 [2021-02-21 15:31:31,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 15:31:31,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-02-21 15:31:31,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 129. [2021-02-21 15:31:31,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2021-02-21 15:31:31,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 152 transitions. [2021-02-21 15:31:31,854 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 152 transitions. Word has length 52 [2021-02-21 15:31:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:31:31,855 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 152 transitions. [2021-02-21 15:31:31,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 15:31:31,856 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 152 transitions. [2021-02-21 15:31:31,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-21 15:31:31,865 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:31:31,865 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] [2021-02-21 15:31:31,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 15:31:31,866 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:31:31,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:31:31,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1131523495, now seen corresponding path program 1 times [2021-02-21 15:31:31,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:31:31,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724374927] [2021-02-21 15:31:31,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:31:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:31,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:31,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:31,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:31,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:31,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:31,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:32,563 WARN L202 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:31:32,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:31:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:32,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:32,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:32,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:31:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:32,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:32,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:32,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:31:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:32,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:32,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:32,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:31:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:32,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:32,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:32,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:31:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:32,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:32,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:32,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-21 15:31:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:32,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:32,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:32,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-21 15:31:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:32,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:32,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:32,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-21 15:31:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:32,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:32,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:32,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:31:32,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724374927] [2021-02-21 15:31:32,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:31:32,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 15:31:32,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389609583] [2021-02-21 15:31:32,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 15:31:32,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:31:32,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 15:31:32,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 15:31:32,637 INFO L87 Difference]: Start difference. First operand 129 states and 152 transitions. Second operand 4 states. [2021-02-21 15:31:33,518 WARN L202 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 15:31:34,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:31:34,936 INFO L93 Difference]: Finished difference Result 229 states and 281 transitions. [2021-02-21 15:31:34,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 15:31:34,937 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-21 15:31:34,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:31:34,940 INFO L225 Difference]: With dead ends: 229 [2021-02-21 15:31:34,940 INFO L226 Difference]: Without dead ends: 146 [2021-02-21 15:31:34,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 15:31:34,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-02-21 15:31:34,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 120. [2021-02-21 15:31:34,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2021-02-21 15:31:34,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2021-02-21 15:31:34,995 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 53 [2021-02-21 15:31:34,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:31:34,995 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2021-02-21 15:31:34,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 15:31:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2021-02-21 15:31:34,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-21 15:31:34,998 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:31:34,998 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] [2021-02-21 15:31:34,998 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 15:31:34,998 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:31:34,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:31:34,999 INFO L82 PathProgramCache]: Analyzing trace with hash -645208921, now seen corresponding path program 1 times [2021-02-21 15:31:34,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:31:34,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906671180] [2021-02-21 15:31:35,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:31:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:35,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:35,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:35,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:35,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:35,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:31:35,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:31:35,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 15:31:35,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:35,763 WARN L202 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:31:35,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:31:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:35,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 15:31:35,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:31:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:35,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:35,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:31:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:35,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:35,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:31:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:35,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:35,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:31:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:35,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:35,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-21 15:31:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:35,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:35,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-21 15:31:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:35,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:35,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-21 15:31:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:35,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:35,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:35,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:31:35,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906671180] [2021-02-21 15:31:35,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:31:35,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 15:31:35,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900788892] [2021-02-21 15:31:35,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 15:31:35,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:31:35,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 15:31:35,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-21 15:31:35,908 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 8 states. [2021-02-21 15:31:36,739 WARN L202 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 15:31:37,537 WARN L202 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:31:38,253 WARN L202 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:31:38,973 WARN L202 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:31:41,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:31:41,140 INFO L93 Difference]: Finished difference Result 242 states and 299 transitions. [2021-02-21 15:31:41,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-21 15:31:41,141 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2021-02-21 15:31:41,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:31:41,144 INFO L225 Difference]: With dead ends: 242 [2021-02-21 15:31:41,145 INFO L226 Difference]: Without dead ends: 146 [2021-02-21 15:31:41,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-21 15:31:41,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-02-21 15:31:41,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 120. [2021-02-21 15:31:41,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2021-02-21 15:31:41,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2021-02-21 15:31:41,186 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 58 [2021-02-21 15:31:41,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:31:41,186 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2021-02-21 15:31:41,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 15:31:41,187 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2021-02-21 15:31:41,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-02-21 15:31:41,192 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:31:41,192 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] [2021-02-21 15:31:41,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 15:31:41,193 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:31:41,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:31:41,193 INFO L82 PathProgramCache]: Analyzing trace with hash 674166336, now seen corresponding path program 1 times [2021-02-21 15:31:41,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:31:41,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117002738] [2021-02-21 15:31:41,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:31:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:41,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:41,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:41,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:41,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:41,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:41,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:41,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:41,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:41,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:41,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:41,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:41,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:41,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:41,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:41,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:41,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:41,999 WARN L202 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 15:31:42,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:31:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:42,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:42,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 15:31:42,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:31:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:42,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:42,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:42,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 15:31:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:42,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:42,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:42,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-21 15:31:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:42,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:42,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:42,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 15:31:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:42,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:42,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:42,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-21 15:31:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:42,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:42,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:42,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 15:31:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:42,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:42,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:42,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 15:31:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:42,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:42,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:42,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-21 15:31:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:42,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:42,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:42,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-02-21 15:31:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:42,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:42,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:31:42,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-21 15:31:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:31:42,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:31:42,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:31:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:31:42,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117002738] [2021-02-21 15:31:42,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:31:42,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 15:31:42,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635765126] [2021-02-21 15:31:42,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 15:31:42,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:31:42,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 15:31:42,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-21 15:31:42,142 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 8 states. [2021-02-21 15:31:43,034 WARN L202 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 15:31:46,230 WARN L202 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:31:47,046 WARN L202 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:31:47,762 WARN L202 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 15:31:48,725 WARN L202 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 15:31:49,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:31:49,630 INFO L93 Difference]: Finished difference Result 363 states and 474 transitions. [2021-02-21 15:31:49,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-21 15:31:49,637 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2021-02-21 15:31:49,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:31:49,640 INFO L225 Difference]: With dead ends: 363 [2021-02-21 15:31:49,640 INFO L226 Difference]: Without dead ends: 267 [2021-02-21 15:31:49,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-21 15:31:49,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-02-21 15:31:49,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 216. [2021-02-21 15:31:49,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2021-02-21 15:31:49,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 258 transitions. [2021-02-21 15:31:49,711 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 258 transitions. Word has length 71 [2021-02-21 15:31:49,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:31:49,712 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 258 transitions. [2021-02-21 15:31:49,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 15:31:49,712 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 258 transitions. [2021-02-21 15:31:49,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-02-21 15:31:49,716 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:31:49,716 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] [2021-02-21 15:31:49,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 15:31:49,717 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:31:49,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:31:49,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1119108826, now seen corresponding path program 1 times [2021-02-21 15:31:49,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:31:49,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59015372] [2021-02-21 15:31:49,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:31:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:31:49,833 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:31:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:31:49,929 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:31:50,044 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 15:31:50,045 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 15:31:50,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 15:31:50,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:31:50 BoogieIcfgContainer [2021-02-21 15:31:50,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 15:31:50,247 INFO L168 Benchmark]: Toolchain (without parser) took 24237.49 ms. Allocated memory was 153.1 MB in the beginning and 281.0 MB in the end (delta: 127.9 MB). Free memory was 127.9 MB in the beginning and 142.3 MB in the end (delta: -14.4 MB). Peak memory consumption was 114.4 MB. Max. memory is 8.0 GB. [2021-02-21 15:31:50,247 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 153.1 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 15:31:50,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.21 ms. Allocated memory is still 153.1 MB. Free memory was 126.8 MB in the beginning and 106.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-21 15:31:50,249 INFO L168 Benchmark]: Boogie Preprocessor took 97.51 ms. Allocated memory is still 153.1 MB. Free memory was 106.1 MB in the beginning and 102.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-21 15:31:50,249 INFO L168 Benchmark]: RCFGBuilder took 1517.28 ms. Allocated memory is still 153.1 MB. Free memory was 102.1 MB in the beginning and 51.9 MB in the end (delta: 50.2 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. [2021-02-21 15:31:50,251 INFO L168 Benchmark]: TraceAbstraction took 21975.93 ms. Allocated memory was 153.1 MB in the beginning and 281.0 MB in the end (delta: 127.9 MB). Free memory was 51.4 MB in the beginning and 142.3 MB in the end (delta: -91.0 MB). Peak memory consumption was 37.5 MB. Max. memory is 8.0 GB. [2021-02-21 15:31:50,254 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 153.1 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 621.21 ms. Allocated memory is still 153.1 MB. Free memory was 126.8 MB in the beginning and 106.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 97.51 ms. Allocated memory is still 153.1 MB. Free memory was 106.1 MB in the beginning and 102.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1517.28 ms. Allocated memory is still 153.1 MB. Free memory was 102.1 MB in the beginning and 51.9 MB in the end (delta: 50.2 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21975.93 ms. Allocated memory was 153.1 MB in the beginning and 281.0 MB in the end (delta: 127.9 MB). Free memory was 51.4 MB in the beginning and 142.3 MB in the end (delta: -91.0 MB). Peak memory consumption was 37.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 142]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L147] int cleanupTimeShifts = 4; [L288] int pumpRunning = 0; [L289] int systemActive = 1; [L711] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=171, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L226] int retValue_acc ; [L227] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L231] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L232] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L233] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L275] int retValue_acc ; [L278] retValue_acc = 1 [L279] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L233] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L233] tmp = valid_product() [L235] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L237] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L238] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L217] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L476] int splverifierCounter ; [L477] int tmp ; [L478] int tmp___0 ; [L479] int tmp___1 ; [L480] int tmp___2 ; [L483] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L485] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L487] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L493] tmp = __VERIFIER_nondet_int() [L495] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L497] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L497] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L503] tmp___0 = __VERIFIER_nondet_int() [L505] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L513] tmp___2 = __VERIFIER_nondet_int() [L515] COND FALSE !(\read(tmp___2)) [L521] tmp___1 = __VERIFIER_nondet_int() [L523] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L530] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L296] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L303] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L351] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L354] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L369] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L328] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L343] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L369] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L305] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L311] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] int tmp ; [L910] int tmp___0 ; [L911] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L915] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L915] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L915] tmp = isMethaneLevelCritical() [L917] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L921] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L921] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L921] tmp___0 = getWaterLevel() [L923] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L925] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L403] int retValue_acc ; [L406] retValue_acc = pumpRunning [L407] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L925] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L925] tmp___1 = isPumpRunning() [L927] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L931] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L142] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 234 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 17.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 444 SDtfs, 665 SDslu, 232 SDs, 0 SdLazy, 1489 SolverSat, 433 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 136 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 309 NumberOfCodeBlocks, 309 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 69202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...