/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 17:42:38,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 17:42:38,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 17:42:38,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 17:42:38,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 17:42:38,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 17:42:38,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 17:42:38,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 17:42:38,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 17:42:38,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 17:42:38,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 17:42:38,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 17:42:38,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 17:42:38,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 17:42:38,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 17:42:38,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 17:42:38,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 17:42:38,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 17:42:38,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 17:42:38,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 17:42:38,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 17:42:38,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 17:42:38,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 17:42:38,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 17:42:38,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 17:42:38,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 17:42:38,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 17:42:38,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 17:42:38,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 17:42:38,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 17:42:38,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 17:42:38,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 17:42:38,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 17:42:38,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 17:42:38,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 17:42:38,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 17:42:38,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 17:42:38,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 17:42:38,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 17:42:38,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 17:42:38,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 17:42:38,220 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 17:42:38,277 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 17:42:38,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 17:42:38,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 17:42:38,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 17:42:38,282 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 17:42:38,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 17:42:38,282 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 17:42:38,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 17:42:38,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 17:42:38,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 17:42:38,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 17:42:38,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 17:42:38,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 17:42:38,284 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 17:42:38,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 17:42:38,285 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 17:42:38,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 17:42:38,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 17:42:38,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 17:42:38,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 17:42:38,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 17:42:38,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:42:38,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 17:42:38,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 17:42:38,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 17:42:38,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 17:42:38,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 17:42:38,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 17:42:38,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 17:42:38,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 17:42:38,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 17:42:38,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 17:42:38,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 17:42:38,750 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 17:42:38,751 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 17:42:38,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-10-23 17:42:38,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fcbc4ec0/d5b8a3dfc31f458fa393439652d82b72/FLAG5bf3953cf [2020-10-23 17:42:39,532 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 17:42:39,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-10-23 17:42:39,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fcbc4ec0/d5b8a3dfc31f458fa393439652d82b72/FLAG5bf3953cf [2020-10-23 17:42:39,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fcbc4ec0/d5b8a3dfc31f458fa393439652d82b72 [2020-10-23 17:42:39,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 17:42:39,811 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 17:42:39,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 17:42:39,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 17:42:39,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 17:42:39,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:42:39" (1/1) ... [2020-10-23 17:42:39,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b3d921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:39, skipping insertion in model container [2020-10-23 17:42:39,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:42:39" (1/1) ... [2020-10-23 17:42:39,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 17:42:39,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 17:42:40,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:42:40,234 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 17:42:40,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:42:40,367 INFO L208 MainTranslator]: Completed translation [2020-10-23 17:42:40,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:40 WrapperNode [2020-10-23 17:42:40,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 17:42:40,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 17:42:40,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 17:42:40,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 17:42:40,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:40" (1/1) ... [2020-10-23 17:42:40,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:40" (1/1) ... [2020-10-23 17:42:40,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:40" (1/1) ... [2020-10-23 17:42:40,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:40" (1/1) ... [2020-10-23 17:42:40,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:40" (1/1) ... [2020-10-23 17:42:40,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:40" (1/1) ... [2020-10-23 17:42:40,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:40" (1/1) ... [2020-10-23 17:42:40,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 17:42:40,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 17:42:40,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 17:42:40,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 17:42:40,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:40" (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 17:42:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 17:42:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 17:42:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 17:42:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 17:42:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 17:42:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 17:42:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 17:42:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 17:42:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 17:42:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 17:42:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 17:42:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 17:42:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 17:42:40,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 17:42:40,596 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 17:42:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 17:42:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 17:42:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 17:42:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 17:42:40,597 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 17:42:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 17:42:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 17:42:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 17:42:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 17:42:40,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 17:42:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 17:42:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 17:42:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 17:42:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 17:42:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 17:42:40,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 17:42:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 17:42:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 17:42:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 17:42:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 17:42:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 17:42:40,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 17:42:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 17:42:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 17:42:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 17:42:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 17:42:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 17:42:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 17:42:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 17:42:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 17:42:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 17:42:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 17:42:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 17:42:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 17:42:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 17:42:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 17:42:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 17:42:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 17:42:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 17:42:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 17:42:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 17:42:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 17:42:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 17:42:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 17:42:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 17:42:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 17:42:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 17:42:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 17:42:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 17:42:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 17:42:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 17:42:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 17:42:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 17:42:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 17:42:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 17:42:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 17:42:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 17:42:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 17:42:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 17:42:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 17:42:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 17:42:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 17:42:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 17:42:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 17:42:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 17:42:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 17:42:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 17:42:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 17:42:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 17:42:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 17:42:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 17:42:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 17:42:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 17:42:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 17:42:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 17:42:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 17:42:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 17:42:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 17:42:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 17:42:41,778 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 17:42:41,778 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 17:42:41,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:42:41 BoogieIcfgContainer [2020-10-23 17:42:41,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 17:42:41,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 17:42:41,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 17:42:41,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 17:42:41,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 05:42:39" (1/3) ... [2020-10-23 17:42:41,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7b4080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:42:41, skipping insertion in model container [2020-10-23 17:42:41,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:42:40" (2/3) ... [2020-10-23 17:42:41,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7b4080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:42:41, skipping insertion in model container [2020-10-23 17:42:41,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:42:41" (3/3) ... [2020-10-23 17:42:41,791 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2020-10-23 17:42:41,803 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 17:42:41,809 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 17:42:41,824 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 17:42:41,854 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 17:42:41,855 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 17:42:41,855 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 17:42:41,855 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 17:42:41,855 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 17:42:41,855 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 17:42:41,856 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 17:42:41,856 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 17:42:41,879 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-10-23 17:42:41,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-23 17:42:41,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:41,890 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] [2020-10-23 17:42:41,891 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 17:42:41,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:41,898 INFO L82 PathProgramCache]: Analyzing trace with hash -535702789, now seen corresponding path program 1 times [2020-10-23 17:42:41,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:41,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393827703] [2020-10-23 17:42:41,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:42,762 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:42,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:42,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:42,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:42,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:42,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:42,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 17:42:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:42,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-23 17:42:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:42,846 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 17:42:42,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393827703] [2020-10-23 17:42:42,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:42:42,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 17:42:42,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44451596] [2020-10-23 17:42:42,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 17:42:42,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:42,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 17:42:42,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 17:42:42,878 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 3 states. [2020-10-23 17:42:44,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:44,413 INFO L93 Difference]: Finished difference Result 312 states and 407 transitions. [2020-10-23 17:42:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 17:42:44,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-10-23 17:42:44,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:44,444 INFO L225 Difference]: With dead ends: 312 [2020-10-23 17:42:44,444 INFO L226 Difference]: Without dead ends: 167 [2020-10-23 17:42:44,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 17:42:44,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-23 17:42:44,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 133. [2020-10-23 17:42:44,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-23 17:42:44,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2020-10-23 17:42:44,623 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 47 [2020-10-23 17:42:44,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:44,624 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2020-10-23 17:42:44,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 17:42:44,624 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2020-10-23 17:42:44,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-23 17:42:44,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:44,628 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] [2020-10-23 17:42:44,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 17:42:44,629 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 17:42:44,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:44,630 INFO L82 PathProgramCache]: Analyzing trace with hash 155018431, now seen corresponding path program 1 times [2020-10-23 17:42:44,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:44,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436745059] [2020-10-23 17:42:44,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:45,139 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:45,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:45,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:45,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:45,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:45,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:45,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-23 17:42:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:45,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-23 17:42:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:45,225 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 17:42:45,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436745059] [2020-10-23 17:42:45,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:42:45,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 17:42:45,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760557986] [2020-10-23 17:42:45,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 17:42:45,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:45,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 17:42:45,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 17:42:45,230 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 4 states. [2020-10-23 17:42:45,889 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 17:42:47,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:47,009 INFO L93 Difference]: Finished difference Result 236 states and 286 transitions. [2020-10-23 17:42:47,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 17:42:47,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-23 17:42:47,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:47,013 INFO L225 Difference]: With dead ends: 236 [2020-10-23 17:42:47,013 INFO L226 Difference]: Without dead ends: 151 [2020-10-23 17:42:47,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 17:42:47,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-23 17:42:47,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 124. [2020-10-23 17:42:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-23 17:42:47,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2020-10-23 17:42:47,068 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 48 [2020-10-23 17:42:47,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:47,069 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2020-10-23 17:42:47,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 17:42:47,069 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2020-10-23 17:42:47,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-23 17:42:47,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:47,071 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] [2020-10-23 17:42:47,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 17:42:47,072 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 17:42:47,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:47,073 INFO L82 PathProgramCache]: Analyzing trace with hash 259647342, now seen corresponding path program 1 times [2020-10-23 17:42:47,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:47,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758637404] [2020-10-23 17:42:47,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:47,521 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:47,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:47,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:47,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:47,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:47,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:47,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 17:42:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:47,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-23 17:42:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:47,629 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 17:42:47,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758637404] [2020-10-23 17:42:47,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:42:47,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 17:42:47,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559880114] [2020-10-23 17:42:47,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 17:42:47,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:47,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 17:42:47,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-23 17:42:47,632 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 8 states. [2020-10-23 17:42:48,224 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:42:48,705 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:49,136 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:49,534 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:50,578 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 17:42:52,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:42:52,893 INFO L93 Difference]: Finished difference Result 425 states and 525 transitions. [2020-10-23 17:42:52,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 17:42:52,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-10-23 17:42:52,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:42:52,903 INFO L225 Difference]: With dead ends: 425 [2020-10-23 17:42:52,903 INFO L226 Difference]: Without dead ends: 325 [2020-10-23 17:42:52,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-23 17:42:52,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-23 17:42:52,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 265. [2020-10-23 17:42:52,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-23 17:42:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 319 transitions. [2020-10-23 17:42:52,996 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 319 transitions. Word has length 52 [2020-10-23 17:42:52,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:42:52,997 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 319 transitions. [2020-10-23 17:42:52,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 17:42:52,999 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 319 transitions. [2020-10-23 17:42:53,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-23 17:42:53,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:42:53,002 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] [2020-10-23 17:42:53,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 17:42:53,003 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 17:42:53,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:42:53,009 INFO L82 PathProgramCache]: Analyzing trace with hash 696880533, now seen corresponding path program 1 times [2020-10-23 17:42:53,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:42:53,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043502482] [2020-10-23 17:42:53,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:42:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:53,577 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:42:53,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:42:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:53,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:42:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:53,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:42:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:53,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:42:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:53,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:42:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:53,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-23 17:42:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:53,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-23 17:42:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:53,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-23 17:42:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:42:53,749 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 17:42:53,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043502482] [2020-10-23 17:42:53,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:42:53,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 17:42:53,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057009578] [2020-10-23 17:42:53,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 17:42:53,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:42:53,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 17:42:53,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-23 17:42:53,752 INFO L87 Difference]: Start difference. First operand 265 states and 319 transitions. Second operand 12 states. [2020-10-23 17:42:54,348 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:42:54,832 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:55,219 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:55,583 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:56,345 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 17:42:57,526 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:42:58,120 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:42:58,736 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:42:59,159 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 17:42:59,583 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:43:00,149 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:00,719 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:01,267 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:03,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:43:03,577 INFO L93 Difference]: Finished difference Result 1067 states and 1470 transitions. [2020-10-23 17:43:03,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 17:43:03,578 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 58 [2020-10-23 17:43:03,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:43:03,591 INFO L225 Difference]: With dead ends: 1067 [2020-10-23 17:43:03,591 INFO L226 Difference]: Without dead ends: 826 [2020-10-23 17:43:03,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-10-23 17:43:03,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-10-23 17:43:03,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 733. [2020-10-23 17:43:03,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-10-23 17:43:03,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 933 transitions. [2020-10-23 17:43:03,838 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 933 transitions. Word has length 58 [2020-10-23 17:43:03,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:43:03,839 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 933 transitions. [2020-10-23 17:43:03,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 17:43:03,839 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 933 transitions. [2020-10-23 17:43:03,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-23 17:43:03,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:43:03,843 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] [2020-10-23 17:43:03,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 17:43:03,844 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 17:43:03,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:43:03,845 INFO L82 PathProgramCache]: Analyzing trace with hash 2011112719, now seen corresponding path program 1 times [2020-10-23 17:43:03,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:43:03,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770149353] [2020-10-23 17:43:03,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:43:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:04,275 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:43:04,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:43:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:04,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:43:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:04,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:43:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:04,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:43:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:04,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:43:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:04,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-23 17:43:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:04,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-23 17:43:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:04,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-23 17:43:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:04,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-23 17:43:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:04,375 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 17:43:04,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770149353] [2020-10-23 17:43:04,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:43:04,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 17:43:04,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640567616] [2020-10-23 17:43:04,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 17:43:04,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:43:04,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 17:43:04,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 17:43:04,378 INFO L87 Difference]: Start difference. First operand 733 states and 933 transitions. Second operand 6 states. [2020-10-23 17:43:04,953 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:43:07,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:43:07,364 INFO L93 Difference]: Finished difference Result 1762 states and 2410 transitions. [2020-10-23 17:43:07,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 17:43:07,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-10-23 17:43:07,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:43:07,379 INFO L225 Difference]: With dead ends: 1762 [2020-10-23 17:43:07,379 INFO L226 Difference]: Without dead ends: 1053 [2020-10-23 17:43:07,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 17:43:07,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2020-10-23 17:43:07,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 965. [2020-10-23 17:43:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-10-23 17:43:07,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1221 transitions. [2020-10-23 17:43:07,650 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1221 transitions. Word has length 62 [2020-10-23 17:43:07,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:43:07,651 INFO L481 AbstractCegarLoop]: Abstraction has 965 states and 1221 transitions. [2020-10-23 17:43:07,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 17:43:07,651 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1221 transitions. [2020-10-23 17:43:07,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-23 17:43:07,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:43:07,655 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:07,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 17:43:07,656 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 17:43:07,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:43:07,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1771834640, now seen corresponding path program 1 times [2020-10-23 17:43:07,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:43:07,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624855411] [2020-10-23 17:43:07,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:43:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,181 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:43:08,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:43:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:43:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:43:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:43:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:43:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 17:43:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 17:43:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-23 17:43:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:43:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-23 17:43:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-23 17:43:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-23 17:43:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,364 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-23 17:43:08,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624855411] [2020-10-23 17:43:08,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117683108] [2020-10-23 17:43:08,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:43:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:08,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-23 17:43:08,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 17:43:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 17:43:09,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 17:43:09,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2020-10-23 17:43:09,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885583319] [2020-10-23 17:43:09,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 17:43:09,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:43:09,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 17:43:09,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-23 17:43:09,025 INFO L87 Difference]: Start difference. First operand 965 states and 1221 transitions. Second operand 15 states. [2020-10-23 17:43:09,775 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:10,711 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:11,595 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:12,971 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:13,508 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:43:15,418 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:43:15,880 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:43:16,457 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:18,122 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:18,606 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:18,989 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:19,415 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:19,828 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:43:20,318 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:20,781 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:21,245 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:21,643 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 17:43:22,258 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 17:43:23,058 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:43:23,945 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:24,385 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:24,822 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:25,465 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:25,924 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:26,313 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:26,716 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:27,197 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 17:43:28,017 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 17:43:28,499 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 17:43:28,982 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 17:43:29,458 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 17:43:29,877 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 17:43:32,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:43:32,061 INFO L93 Difference]: Finished difference Result 2547 states and 3438 transitions. [2020-10-23 17:43:32,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-10-23 17:43:32,062 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 89 [2020-10-23 17:43:32,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:43:32,075 INFO L225 Difference]: With dead ends: 2547 [2020-10-23 17:43:32,076 INFO L226 Difference]: Without dead ends: 1849 [2020-10-23 17:43:32,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2323 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=1192, Invalid=5614, Unknown=0, NotChecked=0, Total=6806 [2020-10-23 17:43:32,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2020-10-23 17:43:32,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1616. [2020-10-23 17:43:32,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1616 states. [2020-10-23 17:43:32,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2029 transitions. [2020-10-23 17:43:32,458 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2029 transitions. Word has length 89 [2020-10-23 17:43:32,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:43:32,459 INFO L481 AbstractCegarLoop]: Abstraction has 1616 states and 2029 transitions. [2020-10-23 17:43:32,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 17:43:32,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2029 transitions. [2020-10-23 17:43:32,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-23 17:43:32,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:43:32,465 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:32,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-23 17:43:32,681 INFO L429 AbstractCegarLoop]: === Iteration 7 === [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 17:43:32,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:43:32,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1790042846, now seen corresponding path program 1 times [2020-10-23 17:43:32,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:43:32,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884222685] [2020-10-23 17:43:32,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:43:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,098 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:43:33,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:43:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:43:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:43:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:43:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:43:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 17:43:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:43:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 17:43:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-23 17:43:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:43:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-23 17:43:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-23 17:43:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:43:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 17:43:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-23 17:43:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-23 17:43:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,341 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-23 17:43:33,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884222685] [2020-10-23 17:43:33,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833490565] [2020-10-23 17:43:33,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:43:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:33,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-23 17:43:33,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 17:43:33,767 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-23 17:43:33,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 17:43:33,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-10-23 17:43:33,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700640480] [2020-10-23 17:43:33,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 17:43:33,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:43:33,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 17:43:33,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-23 17:43:33,775 INFO L87 Difference]: Start difference. First operand 1616 states and 2029 transitions. Second operand 6 states. [2020-10-23 17:43:34,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:43:34,310 INFO L93 Difference]: Finished difference Result 3202 states and 4127 transitions. [2020-10-23 17:43:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 17:43:34,310 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2020-10-23 17:43:34,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:43:34,323 INFO L225 Difference]: With dead ends: 3202 [2020-10-23 17:43:34,324 INFO L226 Difference]: Without dead ends: 1656 [2020-10-23 17:43:34,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-23 17:43:34,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2020-10-23 17:43:34,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1656. [2020-10-23 17:43:34,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1656 states. [2020-10-23 17:43:34,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2075 transitions. [2020-10-23 17:43:34,712 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2075 transitions. Word has length 131 [2020-10-23 17:43:34,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:43:34,713 INFO L481 AbstractCegarLoop]: Abstraction has 1656 states and 2075 transitions. [2020-10-23 17:43:34,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 17:43:34,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2075 transitions. [2020-10-23 17:43:34,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-23 17:43:34,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:43:34,718 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:34,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:43:34,932 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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 17:43:34,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:43:34,933 INFO L82 PathProgramCache]: Analyzing trace with hash -223284896, now seen corresponding path program 1 times [2020-10-23 17:43:34,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:43:34,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078287371] [2020-10-23 17:43:34,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:43:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,373 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:43:35,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:43:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:43:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:43:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:43:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:43:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-23 17:43:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:43:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 17:43:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-23 17:43:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:43:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-23 17:43:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-23 17:43:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:43:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 17:43:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-23 17:43:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-23 17:43:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,598 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-23 17:43:35,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078287371] [2020-10-23 17:43:35,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695547491] [2020-10-23 17:43:35,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:43:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:35,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-23 17:43:35,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 17:43:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-23 17:43:35,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 17:43:35,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 12 [2020-10-23 17:43:35,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819632455] [2020-10-23 17:43:35,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 17:43:35,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:43:35,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 17:43:35,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-23 17:43:35,884 INFO L87 Difference]: Start difference. First operand 1656 states and 2075 transitions. Second operand 5 states. [2020-10-23 17:43:36,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:43:36,215 INFO L93 Difference]: Finished difference Result 3015 states and 3866 transitions. [2020-10-23 17:43:36,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 17:43:36,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2020-10-23 17:43:36,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:43:36,225 INFO L225 Difference]: With dead ends: 3015 [2020-10-23 17:43:36,226 INFO L226 Difference]: Without dead ends: 1429 [2020-10-23 17:43:36,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-23 17:43:36,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2020-10-23 17:43:36,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1383. [2020-10-23 17:43:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1383 states. [2020-10-23 17:43:36,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 1710 transitions. [2020-10-23 17:43:36,623 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 1710 transitions. Word has length 131 [2020-10-23 17:43:36,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:43:36,624 INFO L481 AbstractCegarLoop]: Abstraction has 1383 states and 1710 transitions. [2020-10-23 17:43:36,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 17:43:36,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 1710 transitions. [2020-10-23 17:43:36,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-23 17:43:36,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:43:36,627 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:36,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:43:36,843 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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 17:43:36,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:43:36,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1875627003, now seen corresponding path program 1 times [2020-10-23 17:43:36,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:43:36,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718336919] [2020-10-23 17:43:36,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:43:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,284 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 17:43:37,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:43:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:43:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 17:43:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 17:43:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 17:43:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-23 17:43:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-23 17:43:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:43:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 17:43:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-23 17:43:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:43:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 17:43:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 17:43:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:43:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 17:43:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 17:43:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-23 17:43:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 17:43:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,532 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 17:43:37,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718336919] [2020-10-23 17:43:37,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582494723] [2020-10-23 17:43:37,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:43:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:43:37,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-23 17:43:37,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 17:43:38,014 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:43:38,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 17:43:38,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 17 [2020-10-23 17:43:38,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9983968] [2020-10-23 17:43:38,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-23 17:43:38,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:43:38,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-23 17:43:38,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-10-23 17:43:38,018 INFO L87 Difference]: Start difference. First operand 1383 states and 1710 transitions. Second operand 17 states. [2020-10-23 17:43:38,889 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:43:40,349 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:43:42,401 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 207 DAG size of output: 206 [2020-10-23 17:43:43,233 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:44,005 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:45,411 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-23 17:43:46,224 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 17:43:47,055 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 17:43:50,917 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 17:43:51,733 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 17:43:53,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:43:53,735 INFO L93 Difference]: Finished difference Result 2843 states and 3759 transitions. [2020-10-23 17:43:53,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-23 17:43:53,736 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 135 [2020-10-23 17:43:53,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:43:53,748 INFO L225 Difference]: With dead ends: 2843 [2020-10-23 17:43:53,748 INFO L226 Difference]: Without dead ends: 1639 [2020-10-23 17:43:53,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 181 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=381, Invalid=1101, Unknown=0, NotChecked=0, Total=1482 [2020-10-23 17:43:53,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2020-10-23 17:43:54,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1257. [2020-10-23 17:43:54,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1257 states. [2020-10-23 17:43:54,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1548 transitions. [2020-10-23 17:43:54,096 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1548 transitions. Word has length 135 [2020-10-23 17:43:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:43:54,097 INFO L481 AbstractCegarLoop]: Abstraction has 1257 states and 1548 transitions. [2020-10-23 17:43:54,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-23 17:43:54,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1548 transitions. [2020-10-23 17:43:54,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-23 17:43:54,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:43:54,103 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:54,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 17:43:54,316 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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 17:43:54,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:43:54,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1180589625, now seen corresponding path program 2 times [2020-10-23 17:43:54,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:43:54,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533370900] [2020-10-23 17:43:54,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:43:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:43:54,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:43:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:43:54,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:43:54,760 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 17:43:54,760 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 17:43:54,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 17:43:55,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 05:43:55 BoogieIcfgContainer [2020-10-23 17:43:55,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 17:43:55,067 INFO L168 Benchmark]: Toolchain (without parser) took 75259.75 ms. Allocated memory was 153.1 MB in the beginning and 733.0 MB in the end (delta: 579.9 MB). Free memory was 127.2 MB in the beginning and 498.4 MB in the end (delta: -371.2 MB). Peak memory consumption was 209.3 MB. Max. memory is 8.0 GB. [2020-10-23 17:43:55,068 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 153.1 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 17:43:55,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.28 ms. Allocated memory is still 153.1 MB. Free memory was 126.5 MB in the beginning and 106.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 17:43:55,073 INFO L168 Benchmark]: Boogie Preprocessor took 97.51 ms. Allocated memory is still 153.1 MB. Free memory was 106.0 MB in the beginning and 102.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 17:43:55,075 INFO L168 Benchmark]: RCFGBuilder took 1312.82 ms. Allocated memory was 153.1 MB in the beginning and 203.4 MB in the end (delta: 50.3 MB). Free memory was 102.0 MB in the beginning and 181.2 MB in the end (delta: -79.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 8.0 GB. [2020-10-23 17:43:55,082 INFO L168 Benchmark]: TraceAbstraction took 73282.66 ms. Allocated memory was 203.4 MB in the beginning and 733.0 MB in the end (delta: 529.5 MB). Free memory was 180.7 MB in the beginning and 498.4 MB in the end (delta: -317.7 MB). Peak memory consumption was 211.8 MB. Max. memory is 8.0 GB. [2020-10-23 17:43:55,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 153.1 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 549.28 ms. Allocated memory is still 153.1 MB. Free memory was 126.5 MB in the beginning and 106.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 97.51 ms. Allocated memory is still 153.1 MB. Free memory was 106.0 MB in the beginning and 102.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1312.82 ms. Allocated memory was 153.1 MB in the beginning and 203.4 MB in the end (delta: 50.3 MB). Free memory was 102.0 MB in the beginning and 181.2 MB in the end (delta: -79.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 73282.66 ms. Allocated memory was 203.4 MB in the beginning and 733.0 MB in the end (delta: 529.5 MB). Free memory was 180.7 MB in the beginning and 498.4 MB in the end (delta: -317.7 MB). Peak memory consumption was 211.8 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: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L526] int pumpRunning = 0; [L527] int systemActive = 1; [L730] int waterLevel = 1; [L731] int methaneLevelCritical = 0; [L824] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=164, \old(methaneLevelCritical)=144, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L897] int retValue_acc ; [L898] 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] [L902] 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] [L903] 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] [L904] 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] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] 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] [L904] 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] [L904] tmp = valid_product() [L906] 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] [L908] 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] [L909] 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] [L891] 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] [L452] int splverifierCounter ; [L453] int tmp ; [L454] int tmp___0 ; [L455] int tmp___1 ; [L456] int tmp___2 ; [L459] 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] [L461] 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] [L463] 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] [L469] tmp = __VERIFIER_nondet_int() [L471] 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] [L473] 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] [L748] COND TRUE waterLevel < 2 [L749] 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] [L473] 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] [L479] tmp___0 = __VERIFIER_nondet_int() [L481] 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] [L489] tmp___2 = __VERIFIER_nondet_int() [L491] 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] [L506] 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] [L534] 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] [L541] 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] [L543] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L589] 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] [L592] 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] [L607] CALL processEnvironment__wrappee__highWaterSensor() 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] [L563] 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] [L566] COND TRUE ! 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] [L568] CALL, EXPR isHighWaterLevel() 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] [L686] int retValue_acc ; [L687] int tmp ; [L688] 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] [L692] CALL, EXPR isHighWaterSensorDry() 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] [L810] 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] [L813] COND FALSE !(waterLevel < 2) [L817] retValue_acc = 0 [L818] 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] [L692] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L692] tmp = isHighWaterSensorDry() [L694] COND FALSE !(\read(tmp)) [L697] tmp___0 = 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=1, waterLevel=2] [L699] retValue_acc = tmp___0 [L700] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L568] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L568] tmp = isHighWaterLevel() [L570] COND TRUE \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=1, waterLevel=2] [L572] CALL activatePump() 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] [L617] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L572] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L607] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L543] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L549] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L921] int tmp ; [L922] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L926] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L801] int retValue_acc ; [L804] retValue_acc = waterLevel [L805] 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=1, retValue_acc=2, systemActive=1, waterLevel=2] [L926] 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=1, systemActive=1, waterLevel=2] [L926] tmp = getWaterLevel() [L928] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L549] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L506] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L461] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L463] 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=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L469] tmp = __VERIFIER_nondet_int() [L471] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L479] tmp___0 = __VERIFIER_nondet_int() [L481] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L489] tmp___2 = __VERIFIER_nondet_int() [L491] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L506] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L534] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L536] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L736] COND TRUE waterLevel > 0 [L737] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L536] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L541] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L543] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L589] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L592] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L630] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L634] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L769] int retValue_acc ; [L772] retValue_acc = methaneLevelCritical [L773] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L634] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L634] retValue_acc = isMethaneLevelCritical() [L636] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L594] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] tmp = isMethaneAlarm() [L596] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L602] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L563] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L566] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L581] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L602] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L543] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L549] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L921] int tmp ; [L922] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L926] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L801] int retValue_acc ; [L804] retValue_acc = waterLevel [L805] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L926] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L926] tmp = getWaterLevel() [L928] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L549] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L506] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L461] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L463] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L469] tmp = __VERIFIER_nondet_int() [L471] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L479] tmp___0 = __VERIFIER_nondet_int() [L481] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L489] tmp___2 = __VERIFIER_nondet_int() [L491] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L506] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L534] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L536] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L736] COND TRUE waterLevel > 0 [L737] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L536] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L541] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L543] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L589] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L592] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L594] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L630] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L634] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L769] int retValue_acc ; [L772] retValue_acc = methaneLevelCritical [L773] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L634] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L634] retValue_acc = isMethaneLevelCritical() [L636] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L594] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L594] tmp = isMethaneAlarm() [L596] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L602] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L563] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L566] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L581] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L602] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L543] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L549] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L921] int tmp ; [L922] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L926] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L801] int retValue_acc ; [L804] retValue_acc = waterLevel [L805] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L926] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L926] tmp = getWaterLevel() [L928] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L930] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L641] int retValue_acc ; [L644] retValue_acc = pumpRunning [L645] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L930] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L930] tmp___0 = isPumpRunning() [L932] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L934] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L724] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product39.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 243 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 72.9s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 61.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1315 SDtfs, 3067 SDslu, 2271 SDs, 0 SdLazy, 8960 SolverSat, 2437 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 938 GetRequests, 744 SyntacticMatches, 8 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2863 ImplicationChecksByTransitivity, 33.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1656occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 963 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 1425 NumberOfCodeBlocks, 1425 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1226 ConstructedInterpolants, 0 QuantifiedInterpolants, 367445 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3463 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 185/214 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...