/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 [2021-02-19 17:04:20,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:04:20,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:04:20,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:04:20,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:04:20,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:04:20,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:04:20,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:04:20,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:04:20,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:04:20,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:04:20,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:04:20,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:04:20,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:04:20,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:04:20,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:04:20,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:04:20,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:04:20,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:04:20,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:04:20,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:04:20,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:04:20,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:04:20,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:04:20,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:04:20,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:04:20,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:04:20,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:04:20,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:04:20,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:04:20,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:04:20,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:04:20,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:04:20,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:04:20,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:04:20,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:04:20,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:04:20,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:04:20,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:04:20,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:04:20,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:04:20,447 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 [2021-02-19 17:04:20,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:04:20,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:04:20,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:04:20,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:04:20,478 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:04:20,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:04:20,479 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:04:20,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:04:20,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:04:20,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:04:20,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:04:20,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:04:20,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:04:20,480 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:04:20,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:04:20,481 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:04:20,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:04:20,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:04:20,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:04:20,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:04:20,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:04:20,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:04:20,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:04:20,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:04:20,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:04:20,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:04:20,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:04:20,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:04:20,486 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:04:20,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:04:20,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:04:20,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:04:20,941 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:04:20,948 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:04:20,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2021-02-19 17:04:21,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c46dc24/9747089b6d27444fb97d85e1ddaba1d0/FLAG301271315 [2021-02-19 17:04:21,768 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:04:21,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2021-02-19 17:04:21,784 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c46dc24/9747089b6d27444fb97d85e1ddaba1d0/FLAG301271315 [2021-02-19 17:04:22,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c46dc24/9747089b6d27444fb97d85e1ddaba1d0 [2021-02-19 17:04:22,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:04:22,110 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:04:22,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:04:22,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:04:22,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:04:22,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:04:22" (1/1) ... [2021-02-19 17:04:22,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@313fbe28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:22, skipping insertion in model container [2021-02-19 17:04:22,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:04:22" (1/1) ... [2021-02-19 17:04:22,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:04:22,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:04:22,471 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] [2021-02-19 17:04:22,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:04:22,638 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:04:22,660 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] [2021-02-19 17:04:22,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:04:22,751 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:04:22,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:22 WrapperNode [2021-02-19 17:04:22,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:04:22,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:04:22,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:04:22,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:04:22,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:22" (1/1) ... [2021-02-19 17:04:22,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:22" (1/1) ... [2021-02-19 17:04:22,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:22" (1/1) ... [2021-02-19 17:04:22,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:22" (1/1) ... [2021-02-19 17:04:22,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:22" (1/1) ... [2021-02-19 17:04:22,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:22" (1/1) ... [2021-02-19 17:04:22,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:22" (1/1) ... [2021-02-19 17:04:22,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:04:22,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:04:22,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:04:22,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:04:22,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:22" (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 [2021-02-19 17:04:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:04:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:04:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 17:04:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:04:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 17:04:22,977 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 17:04:22,978 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 17:04:22,978 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 17:04:22,978 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 17:04:22,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 17:04:22,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-19 17:04:22,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 17:04:22,980 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 17:04:22,980 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 17:04:22,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 17:04:22,980 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 17:04:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:04:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 17:04:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 17:04:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 17:04:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 17:04:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 17:04:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-19 17:04:22,981 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-19 17:04:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 17:04:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 17:04:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 17:04:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 17:04:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 17:04:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 17:04:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-19 17:04:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-19 17:04:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 17:04:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 17:04:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 17:04:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 17:04:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 17:04:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 17:04:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 17:04:22,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 17:04:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 17:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 17:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 17:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 17:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 17:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 17:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-19 17:04:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 17:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 17:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 17:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 17:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 17:04:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 17:04:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 17:04:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 17:04:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 17:04:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 17:04:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 17:04:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:04:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 17:04:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 17:04:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 17:04:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 17:04:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-19 17:04:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:04:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 17:04:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-19 17:04:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-19 17:04:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-19 17:04:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 17:04:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 17:04:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 17:04:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 17:04:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 17:04:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 17:04:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 17:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 17:04:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 17:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 17:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 17:04:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 17:04:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 17:04:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:04:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:04:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:04:24,265 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:04:24,266 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 17:04:24,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:04:24 BoogieIcfgContainer [2021-02-19 17:04:24,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:04:24,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:04:24,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:04:24,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:04:24,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:04:22" (1/3) ... [2021-02-19 17:04:24,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313612cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:04:24, skipping insertion in model container [2021-02-19 17:04:24,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:22" (2/3) ... [2021-02-19 17:04:24,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313612cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:04:24, skipping insertion in model container [2021-02-19 17:04:24,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:04:24" (3/3) ... [2021-02-19 17:04:24,279 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2021-02-19 17:04:24,286 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:04:24,291 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:04:24,312 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:04:24,341 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:04:24,341 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:04:24,341 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:04:24,341 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:04:24,341 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:04:24,342 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:04:24,342 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:04:24,342 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:04:24,366 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2021-02-19 17:04:24,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-19 17:04:24,377 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:24,377 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] [2021-02-19 17:04:24,378 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:24,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:24,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1840447875, now seen corresponding path program 1 times [2021-02-19 17:04:24,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:24,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631682723] [2021-02-19 17:04:24,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:24,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,369 WARN L202 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:25,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 17:04:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:04:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:04:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:25,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:25,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:25,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:25,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631682723] [2021-02-19 17:04:25,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:25,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:04:25,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804041388] [2021-02-19 17:04:25,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:04:25,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:25,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:04:25,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:04:25,533 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 3 states. [2021-02-19 17:04:27,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:27,015 INFO L93 Difference]: Finished difference Result 300 states and 394 transitions. [2021-02-19 17:04:27,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:04:27,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-19 17:04:27,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:27,032 INFO L225 Difference]: With dead ends: 300 [2021-02-19 17:04:27,032 INFO L226 Difference]: Without dead ends: 162 [2021-02-19 17:04:27,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:04:27,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-02-19 17:04:27,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 129. [2021-02-19 17:04:27,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2021-02-19 17:04:27,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 152 transitions. [2021-02-19 17:04:27,134 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 152 transitions. Word has length 52 [2021-02-19 17:04:27,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:27,134 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 152 transitions. [2021-02-19 17:04:27,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 17:04:27,135 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 152 transitions. [2021-02-19 17:04:27,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-19 17:04:27,138 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:27,139 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] [2021-02-19 17:04:27,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:04:27,139 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:27,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:27,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1131523495, now seen corresponding path program 1 times [2021-02-19 17:04:27,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:27,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391324330] [2021-02-19 17:04:27,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:27,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:27,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:27,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:27,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:27,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:27,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:27,581 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:27,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:27,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:27,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:27,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:27,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:27,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:27,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:27,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:27,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:27,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:27,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:27,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:27,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:27,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:27,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:27,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:04:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:27,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:27,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:27,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 17:04:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:27,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:27,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:27,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-19 17:04:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:27,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:27,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:27,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:27,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391324330] [2021-02-19 17:04:27,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:27,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:04:27,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415109109] [2021-02-19 17:04:27,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:04:27,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:27,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:04:27,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:04:27,675 INFO L87 Difference]: Start difference. First operand 129 states and 152 transitions. Second operand 4 states. [2021-02-19 17:04:28,234 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:04:29,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:29,280 INFO L93 Difference]: Finished difference Result 229 states and 281 transitions. [2021-02-19 17:04:29,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:04:29,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-19 17:04:29,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:29,284 INFO L225 Difference]: With dead ends: 229 [2021-02-19 17:04:29,284 INFO L226 Difference]: Without dead ends: 146 [2021-02-19 17:04:29,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:04:29,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-02-19 17:04:29,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 120. [2021-02-19 17:04:29,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2021-02-19 17:04:29,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2021-02-19 17:04:29,332 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 53 [2021-02-19 17:04:29,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:29,333 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2021-02-19 17:04:29,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:04:29,333 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2021-02-19 17:04:29,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-19 17:04:29,336 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:29,336 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] [2021-02-19 17:04:29,336 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:04:29,336 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:29,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:29,337 INFO L82 PathProgramCache]: Analyzing trace with hash -645208921, now seen corresponding path program 1 times [2021-02-19 17:04:29,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:29,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435450856] [2021-02-19 17:04:29,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:29,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:29,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:29,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:29,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:29,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:29,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:29,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:29,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:29,833 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:29,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:29,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:04:29,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:29,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:29,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:29,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:29,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:29,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:29,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:29,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:29,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:04:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:29,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:29,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:04:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:29,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:29,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-19 17:04:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:29,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:29,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:29,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435450856] [2021-02-19 17:04:29,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:29,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:04:29,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652011489] [2021-02-19 17:04:29,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:04:29,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:29,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:04:29,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:04:29,987 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 8 states. [2021-02-19 17:04:30,610 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:31,093 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:31,487 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:31,896 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:33,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:33,330 INFO L93 Difference]: Finished difference Result 242 states and 299 transitions. [2021-02-19 17:04:33,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 17:04:33,331 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2021-02-19 17:04:33,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:33,333 INFO L225 Difference]: With dead ends: 242 [2021-02-19 17:04:33,333 INFO L226 Difference]: Without dead ends: 146 [2021-02-19 17:04:33,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-19 17:04:33,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-02-19 17:04:33,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 120. [2021-02-19 17:04:33,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2021-02-19 17:04:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2021-02-19 17:04:33,380 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 58 [2021-02-19 17:04:33,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:33,381 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2021-02-19 17:04:33,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:04:33,381 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2021-02-19 17:04:33,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-02-19 17:04:33,384 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:33,384 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] [2021-02-19 17:04:33,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:04:33,385 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:33,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:33,386 INFO L82 PathProgramCache]: Analyzing trace with hash 674166336, now seen corresponding path program 1 times [2021-02-19 17:04:33,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:33,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325388693] [2021-02-19 17:04:33,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:33,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:33,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:33,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:33,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:33,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:33,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:33,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:33,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:33,911 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:33,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:33,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:04:33,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:33,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:33,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:33,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:33,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:33,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:33,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:33,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:33,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-19 17:04:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:33,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:33,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 17:04:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:33,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:33,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 17:04:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:33,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:33,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-19 17:04:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:33,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:33,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-02-19 17:04:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:33,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:33,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:34,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-02-19 17:04:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:34,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:34,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:34,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:04:34,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325388693] [2021-02-19 17:04:34,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:34,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:04:34,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443141182] [2021-02-19 17:04:34,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:04:34,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:34,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:04:34,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:04:34,025 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 8 states. [2021-02-19 17:04:34,629 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:36,702 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:37,166 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:37,571 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:38,103 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:38,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:38,677 INFO L93 Difference]: Finished difference Result 363 states and 474 transitions. [2021-02-19 17:04:38,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 17:04:38,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2021-02-19 17:04:38,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:38,681 INFO L225 Difference]: With dead ends: 363 [2021-02-19 17:04:38,681 INFO L226 Difference]: Without dead ends: 267 [2021-02-19 17:04:38,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-19 17:04:38,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-02-19 17:04:38,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 216. [2021-02-19 17:04:38,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2021-02-19 17:04:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 258 transitions. [2021-02-19 17:04:38,754 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 258 transitions. Word has length 71 [2021-02-19 17:04:38,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:38,755 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 258 transitions. [2021-02-19 17:04:38,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:04:38,755 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 258 transitions. [2021-02-19 17:04:38,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-02-19 17:04:38,758 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:38,758 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] [2021-02-19 17:04:38,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:04:38,759 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:38,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:38,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1119108826, now seen corresponding path program 1 times [2021-02-19 17:04:38,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:38,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733364536] [2021-02-19 17:04:38,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:04:38,835 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:04:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:04:38,901 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:04:38,993 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:04:38,993 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:04:38,993 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:04:39,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:04:39 BoogieIcfgContainer [2021-02-19 17:04:39,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:04:39,130 INFO L168 Benchmark]: Toolchain (without parser) took 17032.59 ms. Allocated memory was 151.0 MB in the beginning and 330.3 MB in the end (delta: 179.3 MB). Free memory was 126.1 MB in the beginning and 168.3 MB in the end (delta: -42.2 MB). Peak memory consumption was 138.1 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:39,131 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:04:39,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.19 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 104.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:39,137 INFO L168 Benchmark]: Boogie Preprocessor took 91.72 ms. Allocated memory is still 151.0 MB. Free memory was 104.0 MB in the beginning and 100.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:39,138 INFO L168 Benchmark]: RCFGBuilder took 1422.07 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 100.2 MB in the beginning and 164.4 MB in the end (delta: -64.3 MB). Peak memory consumption was 53.9 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:39,144 INFO L168 Benchmark]: TraceAbstraction took 14857.55 ms. Allocated memory was 184.5 MB in the beginning and 330.3 MB in the end (delta: 145.8 MB). Free memory was 163.9 MB in the beginning and 168.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 141.9 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:39,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 641.19 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 104.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 91.72 ms. Allocated memory is still 151.0 MB. Free memory was 104.0 MB in the beginning and 100.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1422.07 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 100.2 MB in the beginning and 164.4 MB in the end (delta: -64.3 MB). Peak memory consumption was 53.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14857.55 ms. Allocated memory was 184.5 MB in the beginning and 330.3 MB in the end (delta: 145.8 MB). Free memory was 163.9 MB in the beginning and 168.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 141.9 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: 14.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 446 SDtfs, 665 SDslu, 238 SDs, 0 SdLazy, 1491 SolverSat, 432 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.4s 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, 2.4s 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...