/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:59:22,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:59:22,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:59:22,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:59:22,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:59:22,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:59:22,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:59:22,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:59:22,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:59:22,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:59:22,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:59:22,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:59:22,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:59:22,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:59:22,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:59:22,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:59:22,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:59:22,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:59:22,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:59:22,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:59:22,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:59:22,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:59:22,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:59:22,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:59:22,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:59:22,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:59:22,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:59:22,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:59:22,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:59:22,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:59:22,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:59:22,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:59:22,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:59:22,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:59:22,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:59:22,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:59:22,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:59:22,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:59:22,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:59:22,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:59:22,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:59:22,433 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 23:59:22,456 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:59:22,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:59:22,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:59:22,462 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:59:22,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:59:22,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:59:22,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:59:22,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:59:22,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:59:22,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:59:22,464 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:59:22,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:59:22,465 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:59:22,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:59:22,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:59:22,466 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:59:22,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:59:22,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:59:22,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:59:22,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:59:22,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:59:22,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:59:22,467 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:59:22,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:59:22,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:59:22,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:59:22,980 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:59:22,981 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:59:22,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-10-23 23:59:23,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b14bdaba/aac0df58e84d4dd2afc9d504b9c608ee/FLAG9aeda4121 [2020-10-23 23:59:23,819 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:59:23,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-10-23 23:59:23,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b14bdaba/aac0df58e84d4dd2afc9d504b9c608ee/FLAG9aeda4121 [2020-10-23 23:59:24,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b14bdaba/aac0df58e84d4dd2afc9d504b9c608ee [2020-10-23 23:59:24,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:59:24,154 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:59:24,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:59:24,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:59:24,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:59:24,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:59:24" (1/1) ... [2020-10-23 23:59:24,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc6e336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:24, skipping insertion in model container [2020-10-23 23:59:24,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:59:24" (1/1) ... [2020-10-23 23:59:24,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:59:24,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:59:24,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:59:24,665 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:59:24,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:59:24,915 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:59:24,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:24 WrapperNode [2020-10-23 23:59:24,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:59:24,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:59:24,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:59:24,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:59:24,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:24" (1/1) ... [2020-10-23 23:59:24,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:24" (1/1) ... [2020-10-23 23:59:24,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:24" (1/1) ... [2020-10-23 23:59:24,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:24" (1/1) ... [2020-10-23 23:59:25,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:24" (1/1) ... [2020-10-23 23:59:25,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:24" (1/1) ... [2020-10-23 23:59:25,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:24" (1/1) ... [2020-10-23 23:59:25,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:59:25,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:59:25,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:59:25,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:59:25,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:59:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:59:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:59:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:59:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:59:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:59:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:59:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:59:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:59:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:59:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:59:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:59:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:59:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:59:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:59:25,135 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:59:25,135 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:59:25,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:59:25,135 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:59:25,135 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:59:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:59:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:59:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:59:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:59:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:59:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:59:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:59:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:59:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:59:25,137 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:59:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:59:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:59:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 23:59:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:59:25,138 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:59:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:59:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:59:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:59:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:59:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 23:59:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 23:59:25,140 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:59:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:59:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:59:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:59:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:59:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:59:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:59:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:59:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:59:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:59:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:59:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:59:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:59:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:59:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:59:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:59:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:59:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:59:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:59:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:59:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:59:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:59:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:59:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:59:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:59:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:59:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:59:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:59:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:59:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:59:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:59:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:59:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:59:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:59:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:59:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:59:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:59:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:59:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:59:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:59:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:59:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:59:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:59:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:59:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:59:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:59:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 23:59:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 23:59:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:59:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:59:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:59:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 23:59:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:59:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:59:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:59:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:59:26,744 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:59:26,744 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:59:26,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:59:26 BoogieIcfgContainer [2020-10-23 23:59:26,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:59:26,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:59:26,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:59:26,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:59:26,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:59:24" (1/3) ... [2020-10-23 23:59:26,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23983dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:59:26, skipping insertion in model container [2020-10-23 23:59:26,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:59:24" (2/3) ... [2020-10-23 23:59:26,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23983dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:59:26, skipping insertion in model container [2020-10-23 23:59:26,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:59:26" (3/3) ... [2020-10-23 23:59:26,756 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-10-23 23:59:26,768 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:59:26,774 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:59:26,786 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:59:26,810 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:59:26,811 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:59:26,811 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:59:26,811 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:59:26,811 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:59:26,811 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:59:26,811 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:59:26,812 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:59:26,834 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states. [2020-10-23 23:59:26,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 23:59:26,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:26,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:26,857 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:26,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:26,864 INFO L82 PathProgramCache]: Analyzing trace with hash -573451514, now seen corresponding path program 1 times [2020-10-23 23:59:26,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:26,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505055131] [2020-10-23 23:59:26,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:27,964 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:27,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:28,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:28,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:28,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:28,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:28,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:59:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:28,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:59:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:28,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:59:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:28,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505055131] [2020-10-23 23:59:28,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:28,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:59:28,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700019766] [2020-10-23 23:59:28,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:59:28,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:28,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:59:28,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:59:28,196 INFO L87 Difference]: Start difference. First operand 328 states. Second operand 3 states. [2020-10-23 23:59:30,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:30,163 INFO L93 Difference]: Finished difference Result 516 states and 609 transitions. [2020-10-23 23:59:30,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:59:30,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 23:59:30,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:30,184 INFO L225 Difference]: With dead ends: 516 [2020-10-23 23:59:30,184 INFO L226 Difference]: Without dead ends: 318 [2020-10-23 23:59:30,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:59:30,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-23 23:59:30,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 274. [2020-10-23 23:59:30,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-23 23:59:30,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 296 transitions. [2020-10-23 23:59:30,366 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 296 transitions. Word has length 159 [2020-10-23 23:59:30,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:30,368 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 296 transitions. [2020-10-23 23:59:30,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:59:30,368 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 296 transitions. [2020-10-23 23:59:30,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 23:59:30,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:30,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:30,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:59:30,374 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:30,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:30,375 INFO L82 PathProgramCache]: Analyzing trace with hash -368518360, now seen corresponding path program 1 times [2020-10-23 23:59:30,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:30,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476678277] [2020-10-23 23:59:30,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:30,921 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:30,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:30,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:30,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:30,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:30,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:30,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 23:59:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:30,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:59:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:30,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 23:59:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:31,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:31,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476678277] [2020-10-23 23:59:31,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:31,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:59:31,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266901787] [2020-10-23 23:59:31,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:59:31,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:31,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:59:31,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:59:31,041 INFO L87 Difference]: Start difference. First operand 274 states and 296 transitions. Second operand 4 states. [2020-10-23 23:59:32,021 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:59:33,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:33,387 INFO L93 Difference]: Finished difference Result 417 states and 466 transitions. [2020-10-23 23:59:33,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:59:33,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 23:59:33,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:33,396 INFO L225 Difference]: With dead ends: 417 [2020-10-23 23:59:33,396 INFO L226 Difference]: Without dead ends: 301 [2020-10-23 23:59:33,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:59:33,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-23 23:59:33,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 264. [2020-10-23 23:59:33,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-23 23:59:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 283 transitions. [2020-10-23 23:59:33,537 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 283 transitions. Word has length 160 [2020-10-23 23:59:33,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:33,541 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 283 transitions. [2020-10-23 23:59:33,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:59:33,541 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 283 transitions. [2020-10-23 23:59:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 23:59:33,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:33,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:33,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:59:33,546 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:33,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:33,549 INFO L82 PathProgramCache]: Analyzing trace with hash -559804130, now seen corresponding path program 1 times [2020-10-23 23:59:33,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:33,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070034951] [2020-10-23 23:59:33,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:34,030 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:34,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:34,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:34,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:34,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:34,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:34,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 23:59:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:34,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:59:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:34,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 23:59:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:34,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 23:59:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:34,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070034951] [2020-10-23 23:59:34,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:34,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:59:34,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743578811] [2020-10-23 23:59:34,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:59:34,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:34,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:59:34,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:59:34,266 INFO L87 Difference]: Start difference. First operand 264 states and 283 transitions. Second operand 10 states. [2020-10-23 23:59:35,056 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:35,549 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:59:35,948 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:59:36,332 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:36,699 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:37,075 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:38,213 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:59:41,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:41,341 INFO L93 Difference]: Finished difference Result 729 states and 840 transitions. [2020-10-23 23:59:41,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:59:41,346 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 23:59:41,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:41,353 INFO L225 Difference]: With dead ends: 729 [2020-10-23 23:59:41,353 INFO L226 Difference]: Without dead ends: 580 [2020-10-23 23:59:41,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 23:59:41,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-10-23 23:59:41,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 471. [2020-10-23 23:59:41,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-10-23 23:59:41,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 520 transitions. [2020-10-23 23:59:41,609 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 520 transitions. Word has length 173 [2020-10-23 23:59:41,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:41,609 INFO L481 AbstractCegarLoop]: Abstraction has 471 states and 520 transitions. [2020-10-23 23:59:41,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:59:41,610 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 520 transitions. [2020-10-23 23:59:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 23:59:41,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:41,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:41,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:59:41,614 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:41,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1075510106, now seen corresponding path program 1 times [2020-10-23 23:59:41,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:41,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449579400] [2020-10-23 23:59:41,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:42,081 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:42,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:42,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:42,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:42,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:42,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:42,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 23:59:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:42,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 23:59:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:42,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 23:59:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:42,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 23:59:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:42,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449579400] [2020-10-23 23:59:42,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:42,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:59:42,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332120942] [2020-10-23 23:59:42,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:59:42,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:42,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:59:42,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:59:42,279 INFO L87 Difference]: Start difference. First operand 471 states and 520 transitions. Second operand 9 states. [2020-10-23 23:59:42,958 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:45,169 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:45,637 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:46,091 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:46,572 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:46,971 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:59:47,408 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:47,802 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:59:49,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:49,263 INFO L93 Difference]: Finished difference Result 1264 states and 1500 transitions. [2020-10-23 23:59:49,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 23:59:49,264 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 23:59:49,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:49,273 INFO L225 Difference]: With dead ends: 1264 [2020-10-23 23:59:49,273 INFO L226 Difference]: Without dead ends: 908 [2020-10-23 23:59:49,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 23:59:49,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2020-10-23 23:59:49,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 805. [2020-10-23 23:59:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2020-10-23 23:59:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 909 transitions. [2020-10-23 23:59:49,618 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 909 transitions. Word has length 178 [2020-10-23 23:59:49,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:49,619 INFO L481 AbstractCegarLoop]: Abstraction has 805 states and 909 transitions. [2020-10-23 23:59:49,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:59:49,620 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 909 transitions. [2020-10-23 23:59:49,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 23:59:49,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:49,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:49,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:59:49,625 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:49,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:49,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1473250213, now seen corresponding path program 1 times [2020-10-23 23:59:49,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:49,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685309925] [2020-10-23 23:59:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:50,054 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:59:50,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:59:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:50,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:59:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:50,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:59:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:50,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:59:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:50,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:59:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:50,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 23:59:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:50,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:59:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:50,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 23:59:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:50,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 23:59:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:50,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-23 23:59:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:59:50,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:59:50,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685309925] [2020-10-23 23:59:50,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:59:50,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 23:59:50,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016963676] [2020-10-23 23:59:50,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 23:59:50,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:59:50,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 23:59:50,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 23:59:50,186 INFO L87 Difference]: Start difference. First operand 805 states and 909 transitions. Second operand 6 states. [2020-10-23 23:59:50,861 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:59:53,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:59:53,578 INFO L93 Difference]: Finished difference Result 1863 states and 2192 transitions. [2020-10-23 23:59:53,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 23:59:53,579 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-10-23 23:59:53,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:59:53,587 INFO L225 Difference]: With dead ends: 1863 [2020-10-23 23:59:53,588 INFO L226 Difference]: Without dead ends: 1173 [2020-10-23 23:59:53,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:59:53,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2020-10-23 23:59:54,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1092. [2020-10-23 23:59:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1092 states. [2020-10-23 23:59:54,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1237 transitions. [2020-10-23 23:59:54,120 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1237 transitions. Word has length 183 [2020-10-23 23:59:54,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:59:54,121 INFO L481 AbstractCegarLoop]: Abstraction has 1092 states and 1237 transitions. [2020-10-23 23:59:54,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 23:59:54,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1237 transitions. [2020-10-23 23:59:54,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 23:59:54,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:59:54,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:59:54,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:59:54,126 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:59:54,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:59:54,127 INFO L82 PathProgramCache]: Analyzing trace with hash 2110951855, now seen corresponding path program 1 times [2020-10-23 23:59:54,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:59:54,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711442988] [2020-10-23 23:59:54,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:59:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:59:54,204 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:59:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:59:54,278 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:59:54,489 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:59:54,490 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:59:54,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:59:54,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:59:54 BoogieIcfgContainer [2020-10-23 23:59:54,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:59:54,739 INFO L168 Benchmark]: Toolchain (without parser) took 30589.97 ms. Allocated memory was 167.8 MB in the beginning and 652.2 MB in the end (delta: 484.4 MB). Free memory was 142.8 MB in the beginning and 278.1 MB in the end (delta: -135.3 MB). Peak memory consumption was 349.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:54,745 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 82.3 MB in the beginning and 81.9 MB in the end (delta: 361.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:59:54,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.65 ms. Allocated memory is still 167.8 MB. Free memory was 142.4 MB in the beginning and 120.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:54,748 INFO L168 Benchmark]: Boogie Preprocessor took 123.25 ms. Allocated memory is still 167.8 MB. Free memory was 120.1 MB in the beginning and 116.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:54,749 INFO L168 Benchmark]: RCFGBuilder took 1705.17 ms. Allocated memory is still 167.8 MB. Free memory was 116.1 MB in the beginning and 145.0 MB in the end (delta: -28.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:54,750 INFO L168 Benchmark]: TraceAbstraction took 27987.45 ms. Allocated memory was 167.8 MB in the beginning and 652.2 MB in the end (delta: 484.4 MB). Free memory was 144.4 MB in the beginning and 278.1 MB in the end (delta: -133.7 MB). Peak memory consumption was 350.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:59:54,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 82.3 MB in the beginning and 81.9 MB in the end (delta: 361.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 758.65 ms. Allocated memory is still 167.8 MB. Free memory was 142.4 MB in the beginning and 120.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 123.25 ms. Allocated memory is still 167.8 MB. Free memory was 120.1 MB in the beginning and 116.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1705.17 ms. Allocated memory is still 167.8 MB. Free memory was 116.1 MB in the beginning and 145.0 MB in the end (delta: -28.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 27987.45 ms. Allocated memory was 167.8 MB in the beginning and 652.2 MB in the end (delta: 484.4 MB). Free memory was 144.4 MB in the beginning and 278.1 MB in the end (delta: -133.7 MB). Peak memory consumption was 350.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=178, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=150, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=148, cleanupTimeShifts=4, head={182:172}, methaneLevelCritical=150, pumpRunning=144, systemActive=143, waterLevel=148] [L187] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=178, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=150, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=148, cleanupTimeShifts=4, head={182:172}, methaneLevelCritical=150, pumpRunning=144, systemActive=143, waterLevel=1] [L188] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=178, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=150, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=148, cleanupTimeShifts=4, head={182:172}, methaneLevelCritical=0, pumpRunning=144, systemActive=143, waterLevel=1] [L494] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=150, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=144, systemActive=143, waterLevel=1] [L695] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=150, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=143, waterLevel=1] [L696] int systemActive = 1; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=150, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; 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] [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] [L307] int retValue_acc ; 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] [L310] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L311] 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() 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, valid_product()=1, waterLevel=1] [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] [L889] int splverifierCounter ; 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] [L890] 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] [L891] int tmp___0 ; 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] [L892] int tmp___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=1] [L893] int tmp___2 ; 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] [L896] 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] [L898] 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] [L900] 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] [L906] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L908] 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] [L910] 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] [L205] COND TRUE waterLevel < 2 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] [L206] 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] [L910] 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] [L916] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L918] 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] [L926] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L928] COND FALSE !(\read(tmp___2)) 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___2=0, waterLevel=2] [L934] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=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] [L936] 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] [L938] 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] [L868] 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] [L875] 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] [L938] 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] [L945] 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] [L702] 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] [L709] 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] [L717] 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] [L151] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L152] int tmp___0 ; 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] [L153] 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] [L157] 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] [L226] int retValue_acc ; 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] [L229] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L230] 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] [L157] 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] [L157] tmp = 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, tmp=0, waterLevel=2] [L159] 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] [L163] 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] [L258] int retValue_acc ; 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] [L261] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L262] 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] [L163] 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] [L163] tmp___0 = 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, tmp___0=2, waterLevel=2] [L165] 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] [L167] 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] [L801] int retValue_acc ; 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] [L804] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L805] 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] [L167] 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] [L167] tmp___1 = 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, tmp___1=0, waterLevel=2] [L169] 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] [L173] 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] [L320] CALL 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] [L3] __assert_fail("0", "minepump_spec3_product44.cil.c", 3, "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 41 procedures, 644 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 21.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1314 SDtfs, 2168 SDslu, 1666 SDs, 0 SdLazy, 3699 SolverSat, 742 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1092occurred 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: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 374 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1036 NumberOfCodeBlocks, 1036 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 848 ConstructedInterpolants, 0 QuantifiedInterpolants, 364336 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...