/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:58:38,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:58:38,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:58:38,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:58:38,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:58:38,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:58:38,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:58:38,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:58:38,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:58:38,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:58:38,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:58:38,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:58:38,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:58:38,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:58:38,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:58:38,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:58:38,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:58:38,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:58:38,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:58:38,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:58:38,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:58:38,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:58:38,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:58:38,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:58:38,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:58:38,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:58:38,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:58:38,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:58:38,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:58:38,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:58:38,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:58:38,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:58:38,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:58:38,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:58:38,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:58:38,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:58:38,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:58:38,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:58:38,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:58:38,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:58:38,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:58:38,234 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:58:38,257 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:58:38,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:58:38,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:58:38,262 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:58:38,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:58:38,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:58:38,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:58:38,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:58:38,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:58:38,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:58:38,264 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:58:38,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:58:38,265 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:58:38,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:58:38,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:58:38,266 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:58:38,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:58:38,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:58:38,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:58:38,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:58:38,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:58:38,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:58:38,268 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:58:38,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:58:38,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:58:38,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:58:38,727 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:58:38,728 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:58:38,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-10-23 19:58:38,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5eddeae2/57994d8f212942889c4a37579a895fd6/FLAGb26d082d2 [2020-10-23 19:58:39,571 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:58:39,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-10-23 19:58:39,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5eddeae2/57994d8f212942889c4a37579a895fd6/FLAGb26d082d2 [2020-10-23 19:58:39,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5eddeae2/57994d8f212942889c4a37579a895fd6 [2020-10-23 19:58:39,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:58:39,827 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:58:39,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:58:39,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:58:39,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:58:39,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:58:39" (1/1) ... [2020-10-23 19:58:39,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18573c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:39, skipping insertion in model container [2020-10-23 19:58:39,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:58:39" (1/1) ... [2020-10-23 19:58:39,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:58:39,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:58:40,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:58:40,342 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:58:40,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:58:40,450 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:58:40,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:40 WrapperNode [2020-10-23 19:58:40,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:58:40,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:58:40,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:58:40,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:58:40,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:40" (1/1) ... [2020-10-23 19:58:40,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:40" (1/1) ... [2020-10-23 19:58:40,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:40" (1/1) ... [2020-10-23 19:58:40,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:40" (1/1) ... [2020-10-23 19:58:40,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:40" (1/1) ... [2020-10-23 19:58:40,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:40" (1/1) ... [2020-10-23 19:58:40,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:40" (1/1) ... [2020-10-23 19:58:40,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:58:40,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:58:40,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:58:40,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:58:40,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:40" (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 19:58:40,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:58:40,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:58:40,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:58:40,632 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:58:40,632 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:58:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:58:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:58:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:58:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:58:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:58:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:58:40,633 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:58:40,634 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:58:40,634 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:58:40,634 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:58:40,634 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:58:40,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:58:40,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:58:40,635 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:58:40,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:58:40,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:58:40,635 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:58:40,635 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:58:40,636 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:58:40,636 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:58:40,636 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:58:40,636 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:58:40,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:58:40,636 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:58:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:58:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:58:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:58:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:58:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:58:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:58:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:58:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:58:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:58:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:58:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:58:40,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:58:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:58:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:58:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:58:40,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:58:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:58:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:58:40,639 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:58:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:58:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:58:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:58:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:58:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:58:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:58:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:58:40,640 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:58:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:58:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:58:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:58:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:58:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:58:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:58:40,641 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:58:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:58:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:58:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:58:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:58:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:58:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:58:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:58:40,642 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:58:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:58:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:58:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:58:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:58:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:58:40,643 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:58:40,644 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:58:40,644 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:58:40,644 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:58:40,644 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:58:40,644 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:58:40,644 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:58:40,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:58:40,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:58:40,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:58:40,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:58:40,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:58:40,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:58:40,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:58:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:58:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:58:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:58:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:58:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:58:40,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:58:40,647 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:58:40,647 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:58:40,647 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:58:40,647 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:58:40,647 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:58:40,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:58:40,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:58:40,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:58:42,320 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:58:42,321 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:58:42,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:58:42 BoogieIcfgContainer [2020-10-23 19:58:42,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:58:42,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:58:42,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:58:42,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:58:42,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:58:39" (1/3) ... [2020-10-23 19:58:42,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322cbe9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:58:42, skipping insertion in model container [2020-10-23 19:58:42,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:40" (2/3) ... [2020-10-23 19:58:42,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322cbe9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:58:42, skipping insertion in model container [2020-10-23 19:58:42,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:58:42" (3/3) ... [2020-10-23 19:58:42,333 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-10-23 19:58:42,345 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:58:42,351 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:58:42,363 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:58:42,387 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:58:42,387 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:58:42,388 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:58:42,388 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:58:42,388 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:58:42,388 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:58:42,388 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:58:42,388 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:58:42,412 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states. [2020-10-23 19:58:42,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:58:42,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:42,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:42,437 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 19:58:42,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:42,443 INFO L82 PathProgramCache]: Analyzing trace with hash -995804249, now seen corresponding path program 1 times [2020-10-23 19:58:42,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:42,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981143425] [2020-10-23 19:58:42,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:42,523 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:43,537 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:43,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:43,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:43,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:43,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:43,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:43,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:58:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:43,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:58:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:43,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:58:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:43,727 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 19:58:43,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981143425] [2020-10-23 19:58:43,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:43,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:58:43,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277786407] [2020-10-23 19:58:43,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:58:43,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:43,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:58:43,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:58:43,756 INFO L87 Difference]: Start difference. First operand 371 states. Second operand 3 states. [2020-10-23 19:58:45,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:45,834 INFO L93 Difference]: Finished difference Result 606 states and 721 transitions. [2020-10-23 19:58:45,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:58:45,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:58:45,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:45,853 INFO L225 Difference]: With dead ends: 606 [2020-10-23 19:58:45,853 INFO L226 Difference]: Without dead ends: 365 [2020-10-23 19:58:45,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:58:45,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-10-23 19:58:46,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 317. [2020-10-23 19:58:46,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-10-23 19:58:46,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 349 transitions. [2020-10-23 19:58:46,073 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 349 transitions. Word has length 159 [2020-10-23 19:58:46,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:46,074 INFO L481 AbstractCegarLoop]: Abstraction has 317 states and 349 transitions. [2020-10-23 19:58:46,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:58:46,074 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 349 transitions. [2020-10-23 19:58:46,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:58:46,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:46,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:46,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:58:46,081 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 19:58:46,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:46,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1204769495, now seen corresponding path program 1 times [2020-10-23 19:58:46,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:46,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668941652] [2020-10-23 19:58:46,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:46,088 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:46,483 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:46,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:46,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:46,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:46,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:46,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:46,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:58:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:46,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:58:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:46,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:58:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:46,618 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 19:58:46,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668941652] [2020-10-23 19:58:46,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:46,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:58:46,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101217817] [2020-10-23 19:58:46,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:58:46,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:46,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:58:46,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:58:46,622 INFO L87 Difference]: Start difference. First operand 317 states and 349 transitions. Second operand 4 states. [2020-10-23 19:58:47,418 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:49,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:49,049 INFO L93 Difference]: Finished difference Result 510 states and 580 transitions. [2020-10-23 19:58:49,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:58:49,050 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:58:49,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:49,056 INFO L225 Difference]: With dead ends: 510 [2020-10-23 19:58:49,056 INFO L226 Difference]: Without dead ends: 348 [2020-10-23 19:58:49,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:58:49,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-23 19:58:49,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 307. [2020-10-23 19:58:49,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-10-23 19:58:49,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 336 transitions. [2020-10-23 19:58:49,182 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 336 transitions. Word has length 160 [2020-10-23 19:58:49,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:49,183 INFO L481 AbstractCegarLoop]: Abstraction has 307 states and 336 transitions. [2020-10-23 19:58:49,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:58:49,183 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 336 transitions. [2020-10-23 19:58:49,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:58:49,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:49,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:49,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:58:49,187 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 19:58:49,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:49,188 INFO L82 PathProgramCache]: Analyzing trace with hash -962342513, now seen corresponding path program 1 times [2020-10-23 19:58:49,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:49,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879910350] [2020-10-23 19:58:49,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:49,192 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:49,700 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:49,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:49,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:49,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:49,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:49,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:49,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:58:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:49,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:58:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:49,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:58:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:49,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:58:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:49,897 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 19:58:49,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879910350] [2020-10-23 19:58:49,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:49,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:58:49,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144372137] [2020-10-23 19:58:49,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:58:49,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:49,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:58:49,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:58:49,901 INFO L87 Difference]: Start difference. First operand 307 states and 336 transitions. Second operand 10 states. [2020-10-23 19:58:50,558 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:51,029 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:58:51,459 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:58:51,841 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:52,212 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:52,572 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:53,689 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:57,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:57,722 INFO L93 Difference]: Finished difference Result 866 states and 1011 transitions. [2020-10-23 19:58:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:58:57,722 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:58:57,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:57,729 INFO L225 Difference]: With dead ends: 866 [2020-10-23 19:58:57,729 INFO L226 Difference]: Without dead ends: 674 [2020-10-23 19:58:57,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:58:57,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-10-23 19:58:57,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 569. [2020-10-23 19:58:57,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2020-10-23 19:58:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 642 transitions. [2020-10-23 19:58:57,998 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 642 transitions. Word has length 173 [2020-10-23 19:58:57,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:57,999 INFO L481 AbstractCegarLoop]: Abstraction has 569 states and 642 transitions. [2020-10-23 19:58:57,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:58:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 642 transitions. [2020-10-23 19:58:58,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:58:58,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:58,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:58:58,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:58:58,005 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 19:58:58,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:58,005 INFO L82 PathProgramCache]: Analyzing trace with hash 2056183593, now seen corresponding path program 1 times [2020-10-23 19:58:58,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:58,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [787217074] [2020-10-23 19:58:58,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:58,009 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:58,446 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:58,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:58,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:58,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:58,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:58,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:58,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:58:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:58,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:58:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:58,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 19:58:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:58,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 19:58:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:58,605 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 19:58:58,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [787217074] [2020-10-23 19:58:58,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:58,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:58:58,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827736735] [2020-10-23 19:58:58,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:58:58,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:58,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:58:58,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:58:58,610 INFO L87 Difference]: Start difference. First operand 569 states and 642 transitions. Second operand 9 states. [2020-10-23 19:58:59,395 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:01,998 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:02,464 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:02,961 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:03,434 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:03,814 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:04,218 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:04,596 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:06,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:06,363 INFO L93 Difference]: Finished difference Result 1574 states and 1898 transitions. [2020-10-23 19:59:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:59:06,363 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 19:59:06,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:06,371 INFO L225 Difference]: With dead ends: 1574 [2020-10-23 19:59:06,372 INFO L226 Difference]: Without dead ends: 1120 [2020-10-23 19:59:06,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:59:06,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2020-10-23 19:59:06,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1009. [2020-10-23 19:59:06,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2020-10-23 19:59:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1165 transitions. [2020-10-23 19:59:06,814 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1165 transitions. Word has length 178 [2020-10-23 19:59:06,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:06,815 INFO L481 AbstractCegarLoop]: Abstraction has 1009 states and 1165 transitions. [2020-10-23 19:59:06,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:59:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1165 transitions. [2020-10-23 19:59:06,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:59:06,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:06,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:06,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:59:06,822 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 19:59:06,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:06,823 INFO L82 PathProgramCache]: Analyzing trace with hash -2004316662, now seen corresponding path program 1 times [2020-10-23 19:59:06,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:06,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028828339] [2020-10-23 19:59:06,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:06,826 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:07,214 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:07,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:07,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:07,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:07,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:07,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:07,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:59:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:07,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:59:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:07,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:59:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:07,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:59:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:07,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-23 19:59:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:07,390 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 19:59:07,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028828339] [2020-10-23 19:59:07,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:07,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:59:07,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018560514] [2020-10-23 19:59:07,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:59:07,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:07,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:59:07,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:59:07,401 INFO L87 Difference]: Start difference. First operand 1009 states and 1165 transitions. Second operand 6 states. [2020-10-23 19:59:08,044 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:10,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:10,801 INFO L93 Difference]: Finished difference Result 2261 states and 2724 transitions. [2020-10-23 19:59:10,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 19:59:10,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-10-23 19:59:10,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:10,810 INFO L225 Difference]: With dead ends: 2261 [2020-10-23 19:59:10,810 INFO L226 Difference]: Without dead ends: 1367 [2020-10-23 19:59:10,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:59:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-10-23 19:59:11,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1266. [2020-10-23 19:59:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-10-23 19:59:11,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1441 transitions. [2020-10-23 19:59:11,279 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1441 transitions. Word has length 183 [2020-10-23 19:59:11,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:11,280 INFO L481 AbstractCegarLoop]: Abstraction has 1266 states and 1441 transitions. [2020-10-23 19:59:11,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:59:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1441 transitions. [2020-10-23 19:59:11,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:59:11,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:11,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:11,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:59:11,285 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 19:59:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:11,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1815258259, now seen corresponding path program 1 times [2020-10-23 19:59:11,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:11,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725066666] [2020-10-23 19:59:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:11,289 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:59:11,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:59:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:59:11,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:59:11,624 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:59:11,624 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:59:11,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:59:11,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:59:11 BoogieIcfgContainer [2020-10-23 19:59:11,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:59:11,649 INFO L168 Benchmark]: Toolchain (without parser) took 31827.30 ms. Allocated memory was 156.2 MB in the beginning and 594.5 MB in the end (delta: 438.3 MB). Free memory was 131.9 MB in the beginning and 406.3 MB in the end (delta: -274.4 MB). Peak memory consumption was 164.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:59:11,650 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 156.2 MB. Free memory was 130.0 MB in the beginning and 129.9 MB in the end (delta: 142.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:59:11,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.94 ms. Allocated memory is still 156.2 MB. Free memory was 131.2 MB in the beginning and 108.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:59:11,652 INFO L168 Benchmark]: Boogie Preprocessor took 98.84 ms. Allocated memory is still 156.2 MB. Free memory was 108.9 MB in the beginning and 104.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:59:11,653 INFO L168 Benchmark]: RCFGBuilder took 1772.15 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 104.7 MB in the beginning and 146.2 MB in the end (delta: -41.5 MB). Peak memory consumption was 49.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:59:11,653 INFO L168 Benchmark]: TraceAbstraction took 29321.32 ms. Allocated memory was 187.7 MB in the beginning and 594.5 MB in the end (delta: 406.8 MB). Free memory was 145.7 MB in the beginning and 406.3 MB in the end (delta: -260.6 MB). Peak memory consumption was 145.7 MB. Max. memory is 8.0 GB. [2020-10-23 19:59:11,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 156.2 MB. Free memory was 130.0 MB in the beginning and 129.9 MB in the end (delta: 142.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 618.94 ms. Allocated memory is still 156.2 MB. Free memory was 131.2 MB in the beginning and 108.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 98.84 ms. Allocated memory is still 156.2 MB. Free memory was 108.9 MB in the beginning and 104.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1772.15 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 104.7 MB in the beginning and 146.2 MB in the end (delta: -41.5 MB). Peak memory consumption was 49.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29321.32 ms. Allocated memory was 187.7 MB in the beginning and 594.5 MB in the end (delta: 406.8 MB). Free memory was 145.7 MB in the beginning and 406.3 MB in the end (delta: -260.6 MB). Peak memory consumption was 145.7 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: [L92] int pumpRunning = 0; [L93] int systemActive = 1; [L429] int waterLevel = 1; [L430] int methaneLevelCritical = 0; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int cleanupTimeShifts = 4; [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L965] CALL test() [L360] int splverifierCounter ; [L361] int tmp ; [L362] int tmp___0 ; [L363] int tmp___1 ; [L364] int tmp___2 ; [L367] splverifierCounter = 0 [L369] COND TRUE 1 [L371] COND TRUE splverifierCounter < 4 [L377] tmp = __VERIFIER_nondet_int() [L379] COND TRUE \read(tmp) [L381] CALL waterRise() [L447] COND TRUE waterLevel < 2 [L448] waterLevel = waterLevel + 1 [L381] RET waterRise() [L387] tmp___0 = __VERIFIER_nondet_int() [L389] COND FALSE !(\read(tmp___0)) [L397] tmp___2 = __VERIFIER_nondet_int() [L399] COND FALSE !(\read(tmp___2)) [L405] tmp___1 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___1) [L409] CALL stopSystem() [L336] COND FALSE !(\read(pumpRunning)) [L343] systemActive = 0 [L409] RET stopSystem() [L416] CALL timeShift() [L100] COND FALSE !(\read(pumpRunning)) [L107] COND FALSE !(\read(systemActive)) [L115] CALL __utac_acc__Specification3_spec__1() [L1004] int tmp ; [L1005] int tmp___0 ; [L1006] int tmp___1 ; [L1010] CALL, EXPR isMethaneLevelCritical() [L468] int retValue_acc ; [L471] retValue_acc = methaneLevelCritical [L472] return (retValue_acc); [L1010] RET, EXPR isMethaneLevelCritical() [L1010] tmp = isMethaneLevelCritical() [L1012] COND FALSE !(\read(tmp)) [L1016] CALL, EXPR getWaterLevel() [L500] int retValue_acc ; [L503] retValue_acc = waterLevel [L504] return (retValue_acc); [L1016] RET, EXPR getWaterLevel() [L1016] tmp___0 = getWaterLevel() [L1018] COND TRUE tmp___0 == 2 [L1020] CALL, EXPR isPumpRunning() [L250] int retValue_acc ; [L253] retValue_acc = pumpRunning [L254] return (retValue_acc); [L1020] RET, EXPR isPumpRunning() [L1020] tmp___1 = isPumpRunning() [L1022] COND FALSE !(\read(tmp___1)) [L1026] CALL __automaton_fail() [L998] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product64.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 45 procedures, 687 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 23.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1513 SDtfs, 3038 SDslu, 1738 SDs, 0 SdLazy, 4406 SolverSat, 1151 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1266occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 406 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...