/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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:57:06,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:57:06,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:57:06,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:57:06,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:57:06,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:57:06,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:57:06,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:57:06,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:57:06,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:57:06,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:57:06,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:57:06,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:57:06,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:57:06,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:57:06,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:57:06,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:57:06,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:57:06,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:57:06,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:57:06,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:57:06,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:57:06,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:57:06,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:57:06,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:57:06,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:57:06,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:57:06,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:57:06,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:57:06,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:57:06,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:57:06,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:57:06,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:57:06,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:57:06,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:57:06,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:57:06,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:57:06,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:57:06,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:57:06,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:57:06,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:57:06,179 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 19:57:06,191 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:57:06,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:57:06,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:57:06,193 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:57:06,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:57:06,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:57:06,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:57:06,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:57:06,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:57:06,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:57:06,195 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:57:06,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:57:06,195 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:57:06,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:57:06,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:57:06,196 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:57:06,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:57:06,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:57:06,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:57:06,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:57:06,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:57:06,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:57:06,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:57:06,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:57:06,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:57:06,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:57:06,630 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:57:06,631 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:57:06,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-10-23 19:57:06,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcbce141e/cd1f46cd5bdd4d50894af5f7be299bb1/FLAG7d3143e47 [2020-10-23 19:57:07,445 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:57:07,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-10-23 19:57:07,462 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcbce141e/cd1f46cd5bdd4d50894af5f7be299bb1/FLAG7d3143e47 [2020-10-23 19:57:07,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcbce141e/cd1f46cd5bdd4d50894af5f7be299bb1 [2020-10-23 19:57:07,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:57:07,704 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:57:07,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:07,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:57:07,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:57:07,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:07" (1/1) ... [2020-10-23 19:57:07,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560f028b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:07, skipping insertion in model container [2020-10-23 19:57:07,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:07" (1/1) ... [2020-10-23 19:57:07,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:57:07,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:57:08,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:08,150 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:57:08,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:08,307 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:57:08,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:08 WrapperNode [2020-10-23 19:57:08,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:08,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:57:08,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:57:08,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:57:08,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:08" (1/1) ... [2020-10-23 19:57:08,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:08" (1/1) ... [2020-10-23 19:57:08,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:08" (1/1) ... [2020-10-23 19:57:08,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:08" (1/1) ... [2020-10-23 19:57:08,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:08" (1/1) ... [2020-10-23 19:57:08,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:08" (1/1) ... [2020-10-23 19:57:08,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:08" (1/1) ... [2020-10-23 19:57:08,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:57:08,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:57:08,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:57:08,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:57:08,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:08" (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 19:57:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:57:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:57:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:57:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:57:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:57:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:57:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:57:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:57:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:57:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:57:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:57:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:57:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:57:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:57:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:57:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:57:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:57:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:57:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:57:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:57:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:57:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:57:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:57:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:57:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:57:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:57:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:57:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:57:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:57:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:57:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:57:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:57:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:57:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:57:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:57:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:57:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:57:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:57:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:57:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:57:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:57:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:57:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:57:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:57:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:57:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:57:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:57:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:57:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:57:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:57:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:57:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:57:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:57:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:57:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:57:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:57:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:57:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:57:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:57:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:57:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:57:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:57:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:57:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:57:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:57:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:57:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:57:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:57:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:57:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:57:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:57:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:57:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:57:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:57:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:57:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:57:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:57:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:57:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:57:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:57:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:57:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:57:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:57:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:57:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:57:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:57:09,672 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:57:09,672 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:57:09,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:09 BoogieIcfgContainer [2020-10-23 19:57:09,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:57:09,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:57:09,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:57:09,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:57:09,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:57:07" (1/3) ... [2020-10-23 19:57:09,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261d7815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:09, skipping insertion in model container [2020-10-23 19:57:09,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:08" (2/3) ... [2020-10-23 19:57:09,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261d7815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:09, skipping insertion in model container [2020-10-23 19:57:09,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:09" (3/3) ... [2020-10-23 19:57:09,684 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-10-23 19:57:09,696 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:57:09,703 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:57:09,717 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:57:09,741 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:57:09,741 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:57:09,742 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:57:09,742 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:57:09,742 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:57:09,742 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:57:09,742 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:57:09,742 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:57:09,765 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-10-23 19:57:09,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:57:09,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:09,788 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 19:57:09,788 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 19:57:09,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:09,795 INFO L82 PathProgramCache]: Analyzing trace with hash -542298857, now seen corresponding path program 1 times [2020-10-23 19:57:09,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:09,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862826151] [2020-10-23 19:57:09,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:09,884 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,636 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:10,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:57:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,784 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 19:57:10,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862826151] [2020-10-23 19:57:10,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:10,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:57:10,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363727180] [2020-10-23 19:57:10,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:57:10,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:10,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:57:10,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:57:10,811 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 3 states. [2020-10-23 19:57:12,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:12,643 INFO L93 Difference]: Finished difference Result 501 states and 600 transitions. [2020-10-23 19:57:12,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:57:12,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:57:12,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:12,674 INFO L225 Difference]: With dead ends: 501 [2020-10-23 19:57:12,674 INFO L226 Difference]: Without dead ends: 310 [2020-10-23 19:57:12,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:57:12,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-10-23 19:57:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 267. [2020-10-23 19:57:12,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-10-23 19:57:12,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 292 transitions. [2020-10-23 19:57:12,867 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 292 transitions. Word has length 159 [2020-10-23 19:57:12,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:12,870 INFO L481 AbstractCegarLoop]: Abstraction has 267 states and 292 transitions. [2020-10-23 19:57:12,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:57:12,871 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 292 transitions. [2020-10-23 19:57:12,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:57:12,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:12,887 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 19:57:12,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:57:12,887 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 19:57:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:12,890 INFO L82 PathProgramCache]: Analyzing trace with hash -905699777, now seen corresponding path program 1 times [2020-10-23 19:57:12,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:12,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112025998] [2020-10-23 19:57:12,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:12,899 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:13,469 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:13,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:13,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:13,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:13,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:13,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:13,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:57:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:13,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:57:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:13,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:57:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:13,557 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 19:57:13,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112025998] [2020-10-23 19:57:13,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:13,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:57:13,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931834181] [2020-10-23 19:57:13,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:57:13,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:13,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:57:13,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:57:13,561 INFO L87 Difference]: Start difference. First operand 267 states and 292 transitions. Second operand 4 states. [2020-10-23 19:57:14,369 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:15,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:15,604 INFO L93 Difference]: Finished difference Result 409 states and 463 transitions. [2020-10-23 19:57:15,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:57:15,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:57:15,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:15,611 INFO L225 Difference]: With dead ends: 409 [2020-10-23 19:57:15,611 INFO L226 Difference]: Without dead ends: 293 [2020-10-23 19:57:15,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:57:15,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-23 19:57:15,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-10-23 19:57:15,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-23 19:57:15,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 279 transitions. [2020-10-23 19:57:15,717 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 279 transitions. Word has length 160 [2020-10-23 19:57:15,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:15,718 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 279 transitions. [2020-10-23 19:57:15,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:57:15,718 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 279 transitions. [2020-10-23 19:57:15,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 19:57:15,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:15,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:57:15,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:57:15,721 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 19:57:15,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:15,722 INFO L82 PathProgramCache]: Analyzing trace with hash 996111529, now seen corresponding path program 1 times [2020-10-23 19:57:15,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:15,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307850434] [2020-10-23 19:57:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:15,726 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:16,172 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:16,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:16,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:16,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:16,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:16,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:16,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:16,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:16,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 19:57:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:16,383 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 19:57:16,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307850434] [2020-10-23 19:57:16,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:16,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:57:16,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138556405] [2020-10-23 19:57:16,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:57:16,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:16,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:57:16,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:57:16,388 INFO L87 Difference]: Start difference. First operand 257 states and 279 transitions. Second operand 9 states. [2020-10-23 19:57:17,058 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:17,556 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:57:17,950 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:57:18,320 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:18,702 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:19,057 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:20,236 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:22,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:22,996 INFO L93 Difference]: Finished difference Result 684 states and 791 transitions. [2020-10-23 19:57:22,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:57:22,996 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 19:57:22,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:23,003 INFO L225 Difference]: With dead ends: 684 [2020-10-23 19:57:23,003 INFO L226 Difference]: Without dead ends: 542 [2020-10-23 19:57:23,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 19:57:23,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-10-23 19:57:23,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 473. [2020-10-23 19:57:23,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-10-23 19:57:23,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 532 transitions. [2020-10-23 19:57:23,184 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 532 transitions. Word has length 169 [2020-10-23 19:57:23,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:23,185 INFO L481 AbstractCegarLoop]: Abstraction has 473 states and 532 transitions. [2020-10-23 19:57:23,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:57:23,185 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 532 transitions. [2020-10-23 19:57:23,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:57:23,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:23,188 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 19:57:23,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:57:23,189 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 19:57:23,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:23,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1827408120, now seen corresponding path program 1 times [2020-10-23 19:57:23,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:23,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512226293] [2020-10-23 19:57:23,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:23,194 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,731 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:23,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:57:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:57:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 19:57:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 19:57:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,890 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 19:57:23,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512226293] [2020-10-23 19:57:23,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:23,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:57:23,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102554757] [2020-10-23 19:57:23,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:57:23,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:23,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:57:23,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:57:23,893 INFO L87 Difference]: Start difference. First operand 473 states and 532 transitions. Second operand 9 states. [2020-10-23 19:57:24,501 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:26,930 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:27,318 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:27,752 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:28,207 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:28,576 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:28,940 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:29,321 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:30,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:30,242 INFO L93 Difference]: Finished difference Result 1271 states and 1532 transitions. [2020-10-23 19:57:30,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:57:30,242 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 19:57:30,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:30,249 INFO L225 Difference]: With dead ends: 1271 [2020-10-23 19:57:30,250 INFO L226 Difference]: Without dead ends: 913 [2020-10-23 19:57:30,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:57:30,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2020-10-23 19:57:30,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 813. [2020-10-23 19:57:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2020-10-23 19:57:30,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 941 transitions. [2020-10-23 19:57:30,635 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 941 transitions. Word has length 178 [2020-10-23 19:57:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:30,636 INFO L481 AbstractCegarLoop]: Abstraction has 813 states and 941 transitions. [2020-10-23 19:57:30,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:57:30,636 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 941 transitions. [2020-10-23 19:57:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:57:30,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:30,641 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 19:57:30,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:57:30,642 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 19:57:30,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:30,642 INFO L82 PathProgramCache]: Analyzing trace with hash 757606864, now seen corresponding path program 1 times [2020-10-23 19:57:30,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:30,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421840312] [2020-10-23 19:57:30,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:30,646 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:30,719 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:30,792 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:30,974 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:57:30,975 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:57:30,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:57:30,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:57:30 BoogieIcfgContainer [2020-10-23 19:57:30,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:57:31,001 INFO L168 Benchmark]: Toolchain (without parser) took 23300.61 ms. Allocated memory was 168.8 MB in the beginning and 434.1 MB in the end (delta: 265.3 MB). Free memory was 144.1 MB in the beginning and 273.1 MB in the end (delta: -128.9 MB). Peak memory consumption was 137.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:31,002 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory was 82.7 MB in the beginning and 82.3 MB in the end (delta: 361.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:57:31,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.98 ms. Allocated memory is still 168.8 MB. Free memory was 143.5 MB in the beginning and 122.3 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:31,003 INFO L168 Benchmark]: Boogie Preprocessor took 123.29 ms. Allocated memory is still 168.8 MB. Free memory was 122.3 MB in the beginning and 118.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:31,004 INFO L168 Benchmark]: RCFGBuilder took 1242.19 ms. Allocated memory is still 168.8 MB. Free memory was 118.1 MB in the beginning and 145.4 MB in the end (delta: -27.3 MB). Peak memory consumption was 66.6 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:31,005 INFO L168 Benchmark]: TraceAbstraction took 21322.28 ms. Allocated memory was 168.8 MB in the beginning and 434.1 MB in the end (delta: 265.3 MB). Free memory was 144.9 MB in the beginning and 273.1 MB in the end (delta: -128.2 MB). Peak memory consumption was 136.6 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:31,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory was 82.7 MB in the beginning and 82.3 MB in the end (delta: 361.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 601.98 ms. Allocated memory is still 168.8 MB. Free memory was 143.5 MB in the beginning and 122.3 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 123.29 ms. Allocated memory is still 168.8 MB. Free memory was 122.3 MB in the beginning and 118.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1242.19 ms. Allocated memory is still 168.8 MB. Free memory was 118.1 MB in the beginning and 145.4 MB in the end (delta: -27.3 MB). Peak memory consumption was 66.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21322.28 ms. Allocated memory was 168.8 MB in the beginning and 434.1 MB in the end (delta: 265.3 MB). Free memory was 144.9 MB in the beginning and 273.1 MB in the end (delta: -128.2 MB). Peak memory consumption was 136.6 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L316] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int pumpRunning = 0; [L588] int systemActive = 1; [L870] int cleanupTimeShifts = 4; [L943] int retValue_acc ; [L944] int tmp ; [L948] FCALL select_helpers() [L949] FCALL select_features() [L950] CALL, EXPR valid_product() [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); [L950] RET, EXPR valid_product() [L950] tmp = valid_product() [L952] COND TRUE \read(tmp) [L954] FCALL setup() [L955] CALL runTest() [L937] CALL test() [L517] int splverifierCounter ; [L518] int tmp ; [L519] int tmp___0 ; [L520] int tmp___1 ; [L521] int tmp___2 ; [L524] splverifierCounter = 0 [L526] COND TRUE 1 [L528] COND TRUE splverifierCounter < 4 [L534] tmp = __VERIFIER_nondet_int() [L536] COND TRUE \read(tmp) [L538] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L538] RET waterRise() [L544] tmp___0 = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp___0)) [L554] tmp___2 = __VERIFIER_nondet_int() [L556] COND FALSE !(\read(tmp___2)) [L560] tmp___1 = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp___1) [L564] CALL stopSystem() [L786] COND FALSE !(\read(pumpRunning)) [L793] systemActive = 0 [L564] RET stopSystem() [L571] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND FALSE !(\read(systemActive)) [L610] CALL __utac_acc__Specification3_spec__1() [L799] int tmp ; [L800] int tmp___0 ; [L801] int tmp___1 ; [L805] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L805] RET, EXPR isMethaneLevelCritical() [L805] tmp = isMethaneLevelCritical() [L807] COND FALSE !(\read(tmp)) [L811] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L811] RET, EXPR getWaterLevel() [L811] tmp___0 = getWaterLevel() [L813] COND TRUE tmp___0 == 2 [L815] CALL, EXPR isPumpRunning() [L719] int retValue_acc ; [L722] retValue_acc = pumpRunning [L723] return (retValue_acc); [L815] RET, EXPR isPumpRunning() [L815] tmp___1 = isPumpRunning() [L817] COND FALSE !(\read(tmp___1)) [L821] CALL __automaton_fail() [L142] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product31.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 649 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1027 SDtfs, 1574 SDslu, 1322 SDs, 0 SdLazy, 3166 SolverSat, 577 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=813occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 248 StatesRemovedByMinimization, 4 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...