/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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:56:34,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:56:34,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:56:34,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:56:34,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:56:34,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:56:34,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:56:34,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:56:34,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:56:34,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:56:34,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:56:34,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:56:34,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:56:34,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:56:34,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:56:34,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:56:34,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:56:34,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:56:34,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:56:34,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:56:34,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:56:34,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:56:34,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:56:34,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:56:34,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:56:34,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:56:34,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:56:34,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:56:34,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:56:34,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:56:34,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:56:34,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:56:34,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:56:34,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:56:34,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:56:34,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:56:34,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:56:34,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:56:34,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:56:34,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:56:34,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:56:34,343 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 23:56:34,361 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:56:34,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:56:34,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:56:34,363 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:56:34,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:56:34,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:56:34,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:56:34,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:56:34,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:56:34,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:56:34,364 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:56:34,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:56:34,365 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:56:34,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:56:34,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:56:34,365 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:56:34,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:56:34,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:56:34,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:56:34,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:56:34,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:56:34,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:56:34,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:56:34,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:56:34,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:56:34,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:56:34,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:56:34,772 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:56:34,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-10-23 23:56:34,852 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deefc614a/6dc558576d3b42ac89b31ce0827d5157/FLAGaa3fc197e [2020-10-23 23:56:35,505 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:56:35,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-10-23 23:56:35,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deefc614a/6dc558576d3b42ac89b31ce0827d5157/FLAGaa3fc197e [2020-10-23 23:56:35,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deefc614a/6dc558576d3b42ac89b31ce0827d5157 [2020-10-23 23:56:35,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:56:35,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:56:35,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:56:35,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:56:35,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:56:35,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:56:35" (1/1) ... [2020-10-23 23:56:35,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71024088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:56:35, skipping insertion in model container [2020-10-23 23:56:35,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:56:35" (1/1) ... [2020-10-23 23:56:35,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:56:35,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:56:36,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:56:36,136 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:56:36,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:56:36,297 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:56:36,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:56:36 WrapperNode [2020-10-23 23:56:36,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:56:36,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:56:36,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:56:36,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:56:36,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:56:36" (1/1) ... [2020-10-23 23:56:36,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:56:36" (1/1) ... [2020-10-23 23:56:36,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:56:36" (1/1) ... [2020-10-23 23:56:36,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:56:36" (1/1) ... [2020-10-23 23:56:36,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:56:36" (1/1) ... [2020-10-23 23:56:36,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:56:36" (1/1) ... [2020-10-23 23:56:36,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:56:36" (1/1) ... [2020-10-23 23:56:36,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:56:36,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:56:36,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:56:36,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:56:36,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:56:36" (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 23:56:36,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:56:36,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:56:36,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:56:36,496 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:56:36,496 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:56:36,496 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:56:36,497 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:56:36,497 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:56:36,497 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:56:36,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:56:36,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:56:36,498 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:56:36,498 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 23:56:36,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:56:36,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:56:36,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:56:36,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:56:36,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:56:36,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:56:36,499 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:56:36,500 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:56:36,500 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:56:36,500 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:56:36,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:56:36,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:56:36,500 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:56:36,501 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:56:36,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:56:36,501 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:56:36,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:56:36,501 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:56:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:56:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:56:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:56:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:56:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:56:36,503 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:56:36,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:56:36,503 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:56:36,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:56:36,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:56:36,504 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:56:36,504 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:56:36,504 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:56:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 23:56:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:56:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:56:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:56:36,505 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:56:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:56:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:56:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:56:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:56:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:56:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:56:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:56:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:56:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:56:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:56:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:56:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:56:36,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:56:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:56:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:56:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:56:36,509 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:56:36,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:56:36,510 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:56:36,510 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:56:36,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:56:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:56:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:56:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:56:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:56:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:56:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:56:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:56:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:56:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:56:36,512 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:56:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:56:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:56:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:56:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:56:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:56:36,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:56:38,221 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:56:38,221 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:56:38,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:56:38 BoogieIcfgContainer [2020-10-23 23:56:38,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:56:38,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:56:38,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:56:38,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:56:38,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:56:35" (1/3) ... [2020-10-23 23:56:38,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbd5484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:56:38, skipping insertion in model container [2020-10-23 23:56:38,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:56:36" (2/3) ... [2020-10-23 23:56:38,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbd5484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:56:38, skipping insertion in model container [2020-10-23 23:56:38,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:56:38" (3/3) ... [2020-10-23 23:56:38,234 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-10-23 23:56:38,251 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:56:38,257 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:56:38,272 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:56:38,304 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:56:38,304 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:56:38,304 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:56:38,305 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:56:38,305 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:56:38,305 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:56:38,305 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:56:38,305 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:56:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-10-23 23:56:38,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 23:56:38,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:56:38,353 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 23:56:38,353 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 23:56:38,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:56:38,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1567185735, now seen corresponding path program 1 times [2020-10-23 23:56:38,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:56:38,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713349367] [2020-10-23 23:56:38,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:56:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:39,250 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:56:39,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:56:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:39,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:56:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:39,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:56:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:39,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:56:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:39,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:56:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:39,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:56:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:39,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:56:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:39,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:56:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:39,464 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 23:56:39,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713349367] [2020-10-23 23:56:39,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:56:39,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:56:39,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253574774] [2020-10-23 23:56:39,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:56:39,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:56:39,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:56:39,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:56:39,491 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 3 states. [2020-10-23 23:56:40,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:56:40,714 INFO L93 Difference]: Finished difference Result 395 states and 472 transitions. [2020-10-23 23:56:40,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:56:40,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 23:56:40,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:56:40,733 INFO L225 Difference]: With dead ends: 395 [2020-10-23 23:56:40,733 INFO L226 Difference]: Without dead ends: 255 [2020-10-23 23:56:40,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:56:40,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-23 23:56:40,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 216. [2020-10-23 23:56:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-10-23 23:56:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 231 transitions. [2020-10-23 23:56:40,885 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 231 transitions. Word has length 159 [2020-10-23 23:56:40,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:56:40,886 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 231 transitions. [2020-10-23 23:56:40,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:56:40,886 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 231 transitions. [2020-10-23 23:56:40,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 23:56:40,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:56:40,891 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 23:56:40,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:56:40,891 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 23:56:40,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:56:40,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1347304768, now seen corresponding path program 1 times [2020-10-23 23:56:40,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:56:40,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165136343] [2020-10-23 23:56:40,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:56:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:41,342 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:56:41,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:56:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:41,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:56:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:41,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:56:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:41,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:56:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:41,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:56:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:41,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 23:56:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:41,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:56:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:41,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 23:56:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:41,483 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 23:56:41,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165136343] [2020-10-23 23:56:41,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:56:41,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:56:41,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986684151] [2020-10-23 23:56:41,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:56:41,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:56:41,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:56:41,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:56:41,490 INFO L87 Difference]: Start difference. First operand 216 states and 231 transitions. Second operand 4 states. [2020-10-23 23:56:42,173 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:56:42,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:56:42,824 INFO L93 Difference]: Finished difference Result 300 states and 333 transitions. [2020-10-23 23:56:42,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:56:42,825 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 23:56:42,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:56:42,834 INFO L225 Difference]: With dead ends: 300 [2020-10-23 23:56:42,834 INFO L226 Difference]: Without dead ends: 238 [2020-10-23 23:56:42,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:56:42,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-23 23:56:42,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 206. [2020-10-23 23:56:42,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-23 23:56:42,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 218 transitions. [2020-10-23 23:56:42,944 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 218 transitions. Word has length 160 [2020-10-23 23:56:42,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:56:42,947 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 218 transitions. [2020-10-23 23:56:42,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:56:42,947 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 218 transitions. [2020-10-23 23:56:42,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 23:56:42,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:56:42,957 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] [2020-10-23 23:56:42,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:56:42,957 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 23:56:42,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:56:42,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1121169911, now seen corresponding path program 1 times [2020-10-23 23:56:42,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:56:42,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944327526] [2020-10-23 23:56:42,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:56:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:43,392 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:56:43,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:56:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:43,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:56:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:43,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:56:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:43,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:56:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:43,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:56:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:43,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:56:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:43,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:56:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:43,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 23:56:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:43,633 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 23:56:43,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944327526] [2020-10-23 23:56:43,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:56:43,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:56:43,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400426665] [2020-10-23 23:56:43,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:56:43,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:56:43,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:56:43,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:56:43,636 INFO L87 Difference]: Start difference. First operand 206 states and 218 transitions. Second operand 9 states. [2020-10-23 23:56:44,232 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:56:44,583 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:56:44,876 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:56:45,129 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:56:45,413 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:56:45,677 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:56:46,640 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:56:47,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:56:47,996 INFO L93 Difference]: Finished difference Result 523 states and 596 transitions. [2020-10-23 23:56:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:56:47,997 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 23:56:47,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:56:48,009 INFO L225 Difference]: With dead ends: 523 [2020-10-23 23:56:48,009 INFO L226 Difference]: Without dead ends: 432 [2020-10-23 23:56:48,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 23:56:48,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-10-23 23:56:48,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 359. [2020-10-23 23:56:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-10-23 23:56:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 394 transitions. [2020-10-23 23:56:48,187 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 394 transitions. Word has length 169 [2020-10-23 23:56:48,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:56:48,187 INFO L481 AbstractCegarLoop]: Abstraction has 359 states and 394 transitions. [2020-10-23 23:56:48,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:56:48,188 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 394 transitions. [2020-10-23 23:56:48,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 23:56:48,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:56:48,190 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] [2020-10-23 23:56:48,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:56:48,191 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 23:56:48,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:56:48,192 INFO L82 PathProgramCache]: Analyzing trace with hash -6034551, now seen corresponding path program 1 times [2020-10-23 23:56:48,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:56:48,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568263313] [2020-10-23 23:56:48,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:56:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:48,526 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:56:48,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:56:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:48,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:56:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:48,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:56:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:48,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:56:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:48,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:56:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:48,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:56:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:48,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 23:56:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:48,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 23:56:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:48,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 23:56:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:48,654 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 23:56:48,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568263313] [2020-10-23 23:56:48,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:56:48,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 23:56:48,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229995133] [2020-10-23 23:56:48,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 23:56:48,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:56:48,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 23:56:48,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-23 23:56:48,657 INFO L87 Difference]: Start difference. First operand 359 states and 394 transitions. Second operand 8 states. [2020-10-23 23:56:49,169 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:56:50,496 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:56:50,772 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:56:51,097 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:56:51,389 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:56:51,666 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:56:51,937 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:56:52,221 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:56:52,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:56:52,662 INFO L93 Difference]: Finished difference Result 857 states and 1001 transitions. [2020-10-23 23:56:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:56:52,663 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 172 [2020-10-23 23:56:52,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:56:52,668 INFO L225 Difference]: With dead ends: 857 [2020-10-23 23:56:52,669 INFO L226 Difference]: Without dead ends: 613 [2020-10-23 23:56:52,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-23 23:56:52,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-10-23 23:56:52,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 577. [2020-10-23 23:56:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-10-23 23:56:52,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 653 transitions. [2020-10-23 23:56:52,925 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 653 transitions. Word has length 172 [2020-10-23 23:56:52,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:56:52,925 INFO L481 AbstractCegarLoop]: Abstraction has 577 states and 653 transitions. [2020-10-23 23:56:52,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 23:56:52,926 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 653 transitions. [2020-10-23 23:56:52,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-23 23:56:52,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:56:52,930 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] [2020-10-23 23:56:52,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:56:52,930 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 23:56:52,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:56:52,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1708779575, now seen corresponding path program 1 times [2020-10-23 23:56:52,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:56:52,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249016957] [2020-10-23 23:56:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:56:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:53,208 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:56:53,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:56:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:53,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:56:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:53,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:56:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:53,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:56:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:53,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:56:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:53,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 23:56:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:53,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:56:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:53,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 23:56:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:53,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 23:56:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:53,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-23 23:56:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:56:53,369 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 23:56:53,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249016957] [2020-10-23 23:56:53,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:56:53,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 23:56:53,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268425753] [2020-10-23 23:56:53,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 23:56:53,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:56:53,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 23:56:53,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:56:53,372 INFO L87 Difference]: Start difference. First operand 577 states and 653 transitions. Second operand 5 states. [2020-10-23 23:56:53,867 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:56:54,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:56:54,642 INFO L93 Difference]: Finished difference Result 952 states and 1102 transitions. [2020-10-23 23:56:54,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 23:56:54,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2020-10-23 23:56:54,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:56:54,646 INFO L225 Difference]: With dead ends: 952 [2020-10-23 23:56:54,646 INFO L226 Difference]: Without dead ends: 550 [2020-10-23 23:56:54,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 23:56:54,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-10-23 23:56:54,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 528. [2020-10-23 23:56:54,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-23 23:56:54,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 579 transitions. [2020-10-23 23:56:54,839 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 579 transitions. Word has length 177 [2020-10-23 23:56:54,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:56:54,840 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 579 transitions. [2020-10-23 23:56:54,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 23:56:54,840 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 579 transitions. [2020-10-23 23:56:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-23 23:56:54,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:56:54,843 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] [2020-10-23 23:56:54,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:56:54,844 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 23:56:54,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:56:54,845 INFO L82 PathProgramCache]: Analyzing trace with hash -863526271, now seen corresponding path program 1 times [2020-10-23 23:56:54,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:56:54,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934235236] [2020-10-23 23:56:54,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:56:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:56:54,929 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:56:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:56:55,033 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:56:55,274 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:56:55,275 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:56:55,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:56:55,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:56:55 BoogieIcfgContainer [2020-10-23 23:56:55,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:56:55,584 INFO L168 Benchmark]: Toolchain (without parser) took 19844.31 ms. Allocated memory was 153.1 MB in the beginning and 463.5 MB in the end (delta: 310.4 MB). Free memory was 110.5 MB in the beginning and 358.3 MB in the end (delta: -247.8 MB). Peak memory consumption was 261.5 MB. Max. memory is 8.0 GB. [2020-10-23 23:56:55,584 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory is still 128.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:56:55,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.30 ms. Allocated memory is still 153.1 MB. Free memory was 109.9 MB in the beginning and 130.7 MB in the end (delta: -20.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:56:55,586 INFO L168 Benchmark]: Boogie Preprocessor took 94.44 ms. Allocated memory is still 153.1 MB. Free memory was 130.7 MB in the beginning and 127.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:56:55,587 INFO L168 Benchmark]: RCFGBuilder took 1825.48 ms. Allocated memory is still 153.1 MB. Free memory was 126.8 MB in the beginning and 81.6 MB in the end (delta: 45.2 MB). Peak memory consumption was 51.5 MB. Max. memory is 8.0 GB. [2020-10-23 23:56:55,588 INFO L168 Benchmark]: TraceAbstraction took 17356.00 ms. Allocated memory was 153.1 MB in the beginning and 463.5 MB in the end (delta: 310.4 MB). Free memory was 81.6 MB in the beginning and 358.3 MB in the end (delta: -276.6 MB). Peak memory consumption was 231.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:56:55,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory is still 128.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 553.30 ms. Allocated memory is still 153.1 MB. Free memory was 109.9 MB in the beginning and 130.7 MB in the end (delta: -20.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 94.44 ms. Allocated memory is still 153.1 MB. Free memory was 130.7 MB in the beginning and 127.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1825.48 ms. Allocated memory is still 153.1 MB. Free memory was 126.8 MB in the beginning and 81.6 MB in the end (delta: 45.2 MB). Peak memory consumption was 51.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17356.00 ms. Allocated memory was 153.1 MB in the beginning and 463.5 MB in the end (delta: 310.4 MB). Free memory was 81.6 MB in the beginning and 358.3 MB in the end (delta: -276.6 MB). Peak memory consumption was 231.9 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: [L121] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=181, head={182:170}, methaneLevelCritical=150, pumpRunning=0, systemActive=140, waterLevel=144] [L122] int systemActive = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=181, head={182:170}, methaneLevelCritical=150, pumpRunning=0, systemActive=1, waterLevel=144] [L413] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=181, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=181, head={0:0}, methaneLevelCritical=150, pumpRunning=0, systemActive=1, waterLevel=144] [L692] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=181, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=150, pumpRunning=0, systemActive=1, waterLevel=144] [L788] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=150, pumpRunning=0, systemActive=1, waterLevel=1] [L789] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=150, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L765] 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] [L766] 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] [L770] 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] [L771] 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] [L772] 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] [L639] 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] [L642] 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] [L643] 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] [L772] 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] [L772] 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] [L774] 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] [L776] 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] [L777] 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] [L759] 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] [L48] 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] [L49] 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] [L50] 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] [L51] 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] [L52] 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] [L55] 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] [L57] 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] [L59] 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] [L65] 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] [L67] 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] [L69] 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] [L806] 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] [L807] 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] [L69] 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] [L75] 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] [L77] 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] [L85] tmp___2 = __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___2=1, waterLevel=2] [L87] COND TRUE \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=1, waterLevel=2] [L102] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L129] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L136] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L144] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L659] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L660] 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=1, waterLevel=2] [L661] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L665] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L827] 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=1, waterLevel=2] [L830] 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=1, waterLevel=2] [L831] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L665] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L665] 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=1, tmp=0, waterLevel=2] [L667] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L671] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L859] 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=1, waterLevel=2] [L862] 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=1, waterLevel=2] [L863] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L671] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L671] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L673] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L675] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L184] 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=1, waterLevel=2] [L187] 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=1, waterLevel=2] [L188] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L675] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L675] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L677] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L681] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L652] 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=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product03.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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 597 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 987 SDtfs, 1126 SDslu, 1347 SDs, 0 SdLazy, 2312 SolverSat, 357 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=577occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 202 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1014 NumberOfCodeBlocks, 1014 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 832 ConstructedInterpolants, 0 QuantifiedInterpolants, 361344 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...