/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_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:05:27,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:05:27,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:05:27,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:05:27,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:05:27,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:05:27,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:05:27,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:05:27,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:05:27,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:05:27,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:05:27,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:05:27,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:05:27,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:05:27,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:05:27,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:05:27,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:05:27,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:05:27,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:05:27,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:05:27,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:05:27,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:05:27,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:05:27,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:05:27,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:05:27,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:05:27,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:05:27,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:05:27,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:05:27,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:05:27,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:05:27,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:05:27,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:05:27,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:05:27,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:05:27,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:05:27,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:05:27,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:05:27,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:05:27,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:05:27,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:05:27,365 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 17:05:27,426 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:05:27,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:05:27,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:05:27,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:05:27,433 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:05:27,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:05:27,434 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:05:27,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:05:27,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:05:27,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:05:27,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:05:27,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:05:27,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:05:27,437 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:05:27,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:05:27,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:05:27,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:05:27,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:05:27,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:05:27,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:05:27,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:05:27,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:05:27,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:05:27,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:05:27,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:05:27,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:05:27,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:05:27,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:05:27,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:05:27,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:05:27,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:05:27,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:05:27,937 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:05:27,938 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:05:27,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2021-02-19 17:05:28,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdcbcbdb8/81b6e3b04543451b88c14a54f1e411ba/FLAG33d613b59 [2021-02-19 17:05:28,857 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:05:28,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2021-02-19 17:05:28,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdcbcbdb8/81b6e3b04543451b88c14a54f1e411ba/FLAG33d613b59 [2021-02-19 17:05:29,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdcbcbdb8/81b6e3b04543451b88c14a54f1e411ba [2021-02-19 17:05:29,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:05:29,153 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:05:29,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:05:29,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:05:29,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:05:29,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:05:29" (1/1) ... [2021-02-19 17:05:29,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529f9725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:29, skipping insertion in model container [2021-02-19 17:05:29,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:05:29" (1/1) ... [2021-02-19 17:05:29,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:05:29,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:05:29,507 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_product63.cil.c[8881,8894] [2021-02-19 17:05:29,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:05:29,625 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:05:29,716 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_product63.cil.c[8881,8894] [2021-02-19 17:05:29,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:05:29,805 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:05:29,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:29 WrapperNode [2021-02-19 17:05:29,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:05:29,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:05:29,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:05:29,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:05:29,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:29" (1/1) ... [2021-02-19 17:05:29,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:29" (1/1) ... [2021-02-19 17:05:29,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:29" (1/1) ... [2021-02-19 17:05:29,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:29" (1/1) ... [2021-02-19 17:05:29,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:29" (1/1) ... [2021-02-19 17:05:29,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:29" (1/1) ... [2021-02-19 17:05:29,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:29" (1/1) ... [2021-02-19 17:05:30,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:05:30,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:05:30,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:05:30,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:05:30,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:29" (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 17:05:30,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:05:30,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:05:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 17:05:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:05:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 17:05:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 17:05:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 17:05:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 17:05:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:05:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 17:05:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 17:05:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 17:05:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 17:05:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 17:05:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-19 17:05:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-19 17:05:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-19 17:05:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 17:05:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-19 17:05:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 17:05:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 17:05:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 17:05:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 17:05:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 17:05:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-19 17:05:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-19 17:05:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-19 17:05:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 17:05:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 17:05:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 17:05:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 17:05:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 17:05:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 17:05:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 17:05:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-19 17:05:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-19 17:05:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 17:05:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:05:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 17:05:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 17:05:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 17:05:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 17:05:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 17:05:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 17:05:30,154 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:05:30,154 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:05:30,154 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:05:30,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:05:30,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:05:30,155 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 17:05:30,155 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 17:05:30,155 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 17:05:30,155 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 17:05:30,155 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 17:05:30,156 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 17:05:30,156 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 17:05:30,156 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 17:05:30,156 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 17:05:30,156 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 17:05:30,156 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 17:05:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 17:05:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 17:05:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:05:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 17:05:30,157 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 17:05:30,158 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 17:05:30,158 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 17:05:30,158 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-19 17:05:30,158 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-19 17:05:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 17:05:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 17:05:30,159 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 17:05:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-19 17:05:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:05:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 17:05:30,160 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-19 17:05:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-19 17:05:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-19 17:05:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-19 17:05:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-19 17:05:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 17:05:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-19 17:05:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 17:05:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 17:05:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 17:05:30,164 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 17:05:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 17:05:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 17:05:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 17:05:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:05:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 17:05:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 17:05:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:05:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 17:05:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 17:05:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:05:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 17:05:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 17:05:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 17:05:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:05:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:05:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:05:31,504 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:05:31,505 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 17:05:31,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:05:31 BoogieIcfgContainer [2021-02-19 17:05:31,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:05:31,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:05:31,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:05:31,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:05:31,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:05:29" (1/3) ... [2021-02-19 17:05:31,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee1c970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:05:31, skipping insertion in model container [2021-02-19 17:05:31,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:05:29" (2/3) ... [2021-02-19 17:05:31,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee1c970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:05:31, skipping insertion in model container [2021-02-19 17:05:31,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:05:31" (3/3) ... [2021-02-19 17:05:31,523 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2021-02-19 17:05:31,533 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:05:31,540 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:05:31,565 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:05:31,612 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:05:31,613 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:05:31,613 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:05:31,613 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:05:31,633 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:05:31,634 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:05:31,634 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:05:31,634 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:05:31,665 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states. [2021-02-19 17:05:31,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-19 17:05:31,684 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:31,685 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 17:05:31,685 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:31,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:31,695 INFO L82 PathProgramCache]: Analyzing trace with hash -94908218, now seen corresponding path program 1 times [2021-02-19 17:05:31,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:31,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140521459] [2021-02-19 17:05:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:32,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:32,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:32,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:32,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:32,412 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:32,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:32,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:32,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:32,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:32,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:32,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:32,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:32,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:32,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:32,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:32,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:32,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:32,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:32,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:32,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:32,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 17:05:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:32,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:32,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:32,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:05:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:32,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:32,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:32,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:05:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:32,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:32,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:32,535 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 17:05:32,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140521459] [2021-02-19 17:05:32,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:32,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:05:32,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669413079] [2021-02-19 17:05:32,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:05:32,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:32,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:05:32,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:05:32,564 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 3 states. [2021-02-19 17:05:34,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:34,155 INFO L93 Difference]: Finished difference Result 371 states and 484 transitions. [2021-02-19 17:05:34,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:05:34,157 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-19 17:05:34,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:34,172 INFO L225 Difference]: With dead ends: 371 [2021-02-19 17:05:34,172 INFO L226 Difference]: Without dead ends: 200 [2021-02-19 17:05:34,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:05:34,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-02-19 17:05:34,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 162. [2021-02-19 17:05:34,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2021-02-19 17:05:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 194 transitions. [2021-02-19 17:05:34,294 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 194 transitions. Word has length 52 [2021-02-19 17:05:34,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:34,294 INFO L480 AbstractCegarLoop]: Abstraction has 162 states and 194 transitions. [2021-02-19 17:05:34,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 17:05:34,295 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 194 transitions. [2021-02-19 17:05:34,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-19 17:05:34,300 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:34,300 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 17:05:34,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:05:34,301 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:34,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:34,301 INFO L82 PathProgramCache]: Analyzing trace with hash 338695205, now seen corresponding path program 1 times [2021-02-19 17:05:34,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:34,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220425415] [2021-02-19 17:05:34,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:34,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:34,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:34,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:34,718 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:34,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:34,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:34,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:34,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:34,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:34,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:34,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:34,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:34,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:34,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:34,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:05:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:34,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:34,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 17:05:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:34,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:34,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-19 17:05:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:34,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:34,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:34,828 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 17:05:34,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220425415] [2021-02-19 17:05:34,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:34,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:05:34,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553024550] [2021-02-19 17:05:34,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:05:34,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:34,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:05:34,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:05:34,833 INFO L87 Difference]: Start difference. First operand 162 states and 194 transitions. Second operand 4 states. [2021-02-19 17:05:35,407 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:05:36,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:36,691 INFO L93 Difference]: Finished difference Result 298 states and 367 transitions. [2021-02-19 17:05:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:05:36,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-19 17:05:36,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:36,706 INFO L225 Difference]: With dead ends: 298 [2021-02-19 17:05:36,707 INFO L226 Difference]: Without dead ends: 184 [2021-02-19 17:05:36,711 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 17:05:36,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-02-19 17:05:36,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 153. [2021-02-19 17:05:36,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2021-02-19 17:05:36,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 182 transitions. [2021-02-19 17:05:36,811 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 182 transitions. Word has length 53 [2021-02-19 17:05:36,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:36,811 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 182 transitions. [2021-02-19 17:05:36,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:05:36,812 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 182 transitions. [2021-02-19 17:05:36,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-19 17:05:36,819 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:36,819 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] [2021-02-19 17:05:36,819 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:05:36,820 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:36,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:36,820 INFO L82 PathProgramCache]: Analyzing trace with hash -763085875, now seen corresponding path program 1 times [2021-02-19 17:05:36,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:36,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299580203] [2021-02-19 17:05:36,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:36,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:36,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:36,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:36,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:36,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:36,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:36,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:36,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:36,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:36,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:05:36,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:36,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:05:36,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:36,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:05:36,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:36,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:37,268 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:37,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:37,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:37,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:05:37,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:37,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:37,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:37,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:37,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:37,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:37,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:37,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:37,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:37,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:37,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:37,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:37,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 17:05:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:37,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:37,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:37,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:05:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:37,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:37,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:37,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:05:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:37,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:37,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:37,388 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 17:05:37,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299580203] [2021-02-19 17:05:37,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:37,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:05:37,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281307282] [2021-02-19 17:05:37,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:05:37,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:37,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:05:37,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:05:37,396 INFO L87 Difference]: Start difference. First operand 153 states and 182 transitions. Second operand 8 states. [2021-02-19 17:05:37,877 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:05:38,282 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:38,656 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:39,040 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:39,937 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:05:42,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:42,879 INFO L93 Difference]: Finished difference Result 525 states and 655 transitions. [2021-02-19 17:05:42,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 17:05:42,880 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-19 17:05:42,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:42,884 INFO L225 Difference]: With dead ends: 525 [2021-02-19 17:05:42,884 INFO L226 Difference]: Without dead ends: 396 [2021-02-19 17:05:42,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-19 17:05:42,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-02-19 17:05:42,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 330. [2021-02-19 17:05:42,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2021-02-19 17:05:43,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 403 transitions. [2021-02-19 17:05:43,004 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 403 transitions. Word has length 57 [2021-02-19 17:05:43,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:43,004 INFO L480 AbstractCegarLoop]: Abstraction has 330 states and 403 transitions. [2021-02-19 17:05:43,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:05:43,005 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 403 transitions. [2021-02-19 17:05:43,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-19 17:05:43,008 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:43,008 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] [2021-02-19 17:05:43,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:05:43,008 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:43,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:43,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1002558053, now seen corresponding path program 1 times [2021-02-19 17:05:43,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:43,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250221962] [2021-02-19 17:05:43,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:43,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:43,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:43,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:43,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:43,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:43,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:43,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:43,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:43,559 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:43,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:43,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:05:43,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:43,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:43,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:43,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:43,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:43,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:43,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:43,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:43,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:05:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:43,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:43,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:05:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:43,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:43,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:05:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:43,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:43,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 17:05:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:43,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:43,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:43,697 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 17:05:43,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250221962] [2021-02-19 17:05:43,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:43,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:05:43,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054403133] [2021-02-19 17:05:43,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:05:43,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:43,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:05:43,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:05:43,700 INFO L87 Difference]: Start difference. First operand 330 states and 403 transitions. Second operand 8 states. [2021-02-19 17:05:44,321 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:05:46,224 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:46,810 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:47,275 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:05:47,692 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:05:49,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:49,302 INFO L93 Difference]: Finished difference Result 1026 states and 1347 transitions. [2021-02-19 17:05:49,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 17:05:49,304 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2021-02-19 17:05:49,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:49,310 INFO L225 Difference]: With dead ends: 1026 [2021-02-19 17:05:49,311 INFO L226 Difference]: Without dead ends: 720 [2021-02-19 17:05:49,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-19 17:05:49,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2021-02-19 17:05:49,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 645. [2021-02-19 17:05:49,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2021-02-19 17:05:49,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 801 transitions. [2021-02-19 17:05:49,501 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 801 transitions. Word has length 63 [2021-02-19 17:05:49,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:49,502 INFO L480 AbstractCegarLoop]: Abstraction has 645 states and 801 transitions. [2021-02-19 17:05:49,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:05:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 801 transitions. [2021-02-19 17:05:49,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-19 17:05:49,506 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:49,506 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] [2021-02-19 17:05:49,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:05:49,507 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:49,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:49,508 INFO L82 PathProgramCache]: Analyzing trace with hash -951629311, now seen corresponding path program 1 times [2021-02-19 17:05:49,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:49,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459728577] [2021-02-19 17:05:49,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:49,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:49,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:49,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:49,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:49,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:49,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:49,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:49,937 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:05:49,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:05:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:49,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:49,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:05:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:49,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:49,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:05:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:49,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:49,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:05:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:49,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:49,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:05:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:49,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:49,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:49,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:05:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:49,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:50,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:05:50,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-19 17:05:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:50,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:50,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:50,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-19 17:05:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:50,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:50,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:50,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-19 17:05:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:50,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:50,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:50,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-19 17:05:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:05:50,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:05:50,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:05:50,037 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 17:05:50,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459728577] [2021-02-19 17:05:50,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:05:50,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 17:05:50,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078047026] [2021-02-19 17:05:50,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 17:05:50,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:05:50,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 17:05:50,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 17:05:50,040 INFO L87 Difference]: Start difference. First operand 645 states and 801 transitions. Second operand 6 states. [2021-02-19 17:05:50,539 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:05:53,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:05:53,094 INFO L93 Difference]: Finished difference Result 1512 states and 1972 transitions. [2021-02-19 17:05:53,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 17:05:53,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2021-02-19 17:05:53,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:05:53,103 INFO L225 Difference]: With dead ends: 1512 [2021-02-19 17:05:53,104 INFO L226 Difference]: Without dead ends: 891 [2021-02-19 17:05:53,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-19 17:05:53,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2021-02-19 17:05:53,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 821. [2021-02-19 17:05:53,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2021-02-19 17:05:53,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 996 transitions. [2021-02-19 17:05:53,330 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 996 transitions. Word has length 67 [2021-02-19 17:05:53,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:05:53,331 INFO L480 AbstractCegarLoop]: Abstraction has 821 states and 996 transitions. [2021-02-19 17:05:53,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 17:05:53,331 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 996 transitions. [2021-02-19 17:05:53,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-19 17:05:53,333 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:05:53,333 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] [2021-02-19 17:05:53,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:05:53,334 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:05:53,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:05:53,334 INFO L82 PathProgramCache]: Analyzing trace with hash 238569153, now seen corresponding path program 1 times [2021-02-19 17:05:53,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:05:53,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657276608] [2021-02-19 17:05:53,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:05:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:05:53,412 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:05:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:05:53,483 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:05:53,566 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:05:53,566 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:05:53,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 17:05:53,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:05:53 BoogieIcfgContainer [2021-02-19 17:05:53,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:05:53,694 INFO L168 Benchmark]: Toolchain (without parser) took 24551.56 ms. Allocated memory was 169.9 MB in the beginning and 457.2 MB in the end (delta: 287.3 MB). Free memory was 144.3 MB in the beginning and 184.5 MB in the end (delta: -40.2 MB). Peak memory consumption was 247.8 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:53,695 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 169.9 MB. Free memory is still 143.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:05:53,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.38 ms. Allocated memory is still 169.9 MB. Free memory was 143.2 MB in the beginning and 121.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:53,696 INFO L168 Benchmark]: Boogie Preprocessor took 200.57 ms. Allocated memory is still 169.9 MB. Free memory was 121.6 MB in the beginning and 151.3 MB in the end (delta: -29.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:53,696 INFO L168 Benchmark]: RCFGBuilder took 1499.13 ms. Allocated memory is still 169.9 MB. Free memory was 151.3 MB in the beginning and 60.1 MB in the end (delta: 91.2 MB). Peak memory consumption was 90.2 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:53,697 INFO L168 Benchmark]: TraceAbstraction took 22183.18 ms. Allocated memory was 169.9 MB in the beginning and 457.2 MB in the end (delta: 287.3 MB). Free memory was 59.6 MB in the beginning and 184.5 MB in the end (delta: -124.9 MB). Peak memory consumption was 163.5 MB. Max. memory is 8.0 GB. [2021-02-19 17:05:53,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 169.9 MB. Free memory is still 143.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 651.38 ms. Allocated memory is still 169.9 MB. Free memory was 143.2 MB in the beginning and 121.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 200.57 ms. Allocated memory is still 169.9 MB. Free memory was 121.6 MB in the beginning and 151.3 MB in the end (delta: -29.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1499.13 ms. Allocated memory is still 169.9 MB. Free memory was 151.3 MB in the beginning and 60.1 MB in the end (delta: 91.2 MB). Peak memory consumption was 90.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 22183.18 ms. Allocated memory was 169.9 MB in the beginning and 457.2 MB in the end (delta: 287.3 MB). Free memory was 59.6 MB in the beginning and 184.5 MB in the end (delta: -124.9 MB). Peak memory consumption was 163.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 621]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L190] int pumpRunning = 0; [L191] int systemActive = 1; [L514] int waterLevel = 1; [L515] int methaneLevelCritical = 0; [L829] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=181, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=143, \old(systemActive)=142, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] 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] [L128] 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] [L129] 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] [L130] 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] [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] 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] [L130] 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] [L130] tmp = valid_product() [L132] 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] [L134] 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] [L135] 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] [L114] 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] [L447] int splverifierCounter ; [L448] int tmp ; [L449] int tmp___0 ; [L450] int tmp___1 ; [L451] int tmp___2 ; [L454] 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] [L456] 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] [L458] 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] [L464] tmp = __VERIFIER_nondet_int() [L466] 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] [L468] 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] [L532] COND TRUE waterLevel < 2 [L533] 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] [L468] 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] [L474] tmp___0 = __VERIFIER_nondet_int() [L476] 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] [L484] tmp___2 = __VERIFIER_nondet_int() [L486] COND FALSE !(\read(tmp___2)) [L490] tmp___1 = __VERIFIER_nondet_int() [L492] COND TRUE \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=-1, tmp___2=0, waterLevel=2] [L494] CALL stopSystem() 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] [L434] COND FALSE !(\read(pumpRunning)) 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] [L441] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L494] RET stopSystem() 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=0, tmp=1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L501] 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=0, waterLevel=2] [L198] 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=0, waterLevel=2] [L205] COND FALSE !(\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=0, waterLevel=2] [L213] 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=0, waterLevel=2] [L627] int tmp ; [L628] int tmp___0 ; [L629] 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=0, waterLevel=2] [L633] 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=0, waterLevel=2] [L553] int retValue_acc ; [L556] retValue_acc = methaneLevelCritical [L557] 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=0, waterLevel=2] [L633] 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=0, waterLevel=2] [L633] tmp = isMethaneLevelCritical() [L635] 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=0, tmp=0, waterLevel=2] [L639] 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=0, waterLevel=2] [L585] int retValue_acc ; [L588] retValue_acc = waterLevel [L589] 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=0, waterLevel=2] [L639] 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=0, tmp=0, waterLevel=2] [L639] tmp___0 = getWaterLevel() [L641] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L643] 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=0, waterLevel=2] [L348] int retValue_acc ; [L351] retValue_acc = pumpRunning [L352] 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=0, waterLevel=2] [L643] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L643] tmp___1 = isPumpRunning() [L645] 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=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L649] 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=0, waterLevel=2] [L621] 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=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 264 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 745 SDtfs, 1236 SDslu, 475 SDs, 0 SdLazy, 2833 SolverSat, 755 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=821occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 280 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 87348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...