/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_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:03:07,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:03:07,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:03:07,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:03:07,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:03:07,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:03:07,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:03:07,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:03:07,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:03:07,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:03:07,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:03:07,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:03:07,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:03:07,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:03:07,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:03:07,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:03:07,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:03:07,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:03:07,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:03:07,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:03:07,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:03:07,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:03:07,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:03:07,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:03:07,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:03:07,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:03:07,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:03:07,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:03:07,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:03:07,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:03:07,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:03:07,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:03:07,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:03:07,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:03:07,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:03:07,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:03:07,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:03:07,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:03:07,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:03:07,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:03:07,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:03:07,272 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:03:07,283 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:03:07,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:03:07,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:03:07,285 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:03:07,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:03:07,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:03:07,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:03:07,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:03:07,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:03:07,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:03:07,287 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:03:07,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:03:07,287 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:03:07,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:03:07,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:03:07,288 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:03:07,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:03:07,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:03:07,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:03:07,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:03:07,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:03:07,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:03:07,289 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:03:07,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:03:07,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:03:07,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:03:07,692 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:03:07,693 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:03:07,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-11-07 00:03:07,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205b2c8e4/b60e0a88a3c5468490e4312f3b62362c/FLAGc4a34fb3f [2020-11-07 00:03:08,466 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:03:08,467 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-11-07 00:03:08,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205b2c8e4/b60e0a88a3c5468490e4312f3b62362c/FLAGc4a34fb3f [2020-11-07 00:03:08,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/205b2c8e4/b60e0a88a3c5468490e4312f3b62362c [2020-11-07 00:03:08,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:03:08,699 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:03:08,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:03:08,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:03:08,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:03:08,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:03:08" (1/1) ... [2020-11-07 00:03:08,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369f7adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:08, skipping insertion in model container [2020-11-07 00:03:08,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:03:08" (1/1) ... [2020-11-07 00:03:08,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:03:08,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:03:09,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:03:09,145 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:03:09,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:03:09,337 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:03:09,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:09 WrapperNode [2020-11-07 00:03:09,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:03:09,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:03:09,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:03:09,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:03:09,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:09" (1/1) ... [2020-11-07 00:03:09,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:09" (1/1) ... [2020-11-07 00:03:09,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:09" (1/1) ... [2020-11-07 00:03:09,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:09" (1/1) ... [2020-11-07 00:03:09,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:09" (1/1) ... [2020-11-07 00:03:09,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:09" (1/1) ... [2020-11-07 00:03:09,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:09" (1/1) ... [2020-11-07 00:03:09,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:03:09,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:03:09,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:03:09,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:03:09,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:09" (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 [2020-11-07 00:03:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:03:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:03:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:03:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:03:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:03:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:03:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:03:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:03:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:03:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:03:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:03:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:03:09,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:03:09,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:03:09,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:03:09,564 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:03:09,564 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:03:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:03:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:03:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:03:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:03:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:03:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:03:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:03:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:03:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:03:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 00:03:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:03:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:03:09,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:03:09,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:03:09,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 00:03:09,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:03:09,567 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:03:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:03:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:03:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:03:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:03:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 00:03:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:03:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:03:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 00:03:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:03:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:03:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:03:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:03:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:03:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:03:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:03:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:03:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:03:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:03:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:03:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:03:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:03:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:03:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:03:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:03:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:03:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:03:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:03:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:03:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:03:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:03:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:03:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:03:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:03:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:03:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:03:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:03:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:03:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:03:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:03:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:03:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:03:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:03:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:03:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:03:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:03:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:03:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:03:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:03:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:03:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:03:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:03:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:03:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 00:03:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:03:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:03:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:03:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:03:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 00:03:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:03:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:03:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 00:03:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 00:03:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:03:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 00:03:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:03:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:03:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:03:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:03:10,919 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:03:10,919 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:03:10,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:03:10 BoogieIcfgContainer [2020-11-07 00:03:10,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:03:10,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:03:10,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:03:10,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:03:10,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:03:08" (1/3) ... [2020-11-07 00:03:10,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28839dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:03:10, skipping insertion in model container [2020-11-07 00:03:10,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:03:09" (2/3) ... [2020-11-07 00:03:10,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28839dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:03:10, skipping insertion in model container [2020-11-07 00:03:10,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:03:10" (3/3) ... [2020-11-07 00:03:10,930 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-11-07 00:03:10,945 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:03:10,949 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:03:10,961 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:03:10,985 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:03:10,985 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:03:10,985 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:03:10,985 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:03:10,985 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:03:10,986 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:03:10,986 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:03:10,986 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:03:11,008 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-07 00:03:11,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:03:11,031 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:11,032 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] [2020-11-07 00:03:11,033 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]=== [2020-11-07 00:03:11,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:11,038 INFO L82 PathProgramCache]: Analyzing trace with hash 2039354410, now seen corresponding path program 1 times [2020-11-07 00:03:11,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:11,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027541822] [2020-11-07 00:03:11,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:11,128 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,770 WARN L194 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:11,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:03:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:03:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:03:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:11,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:11,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027541822] [2020-11-07 00:03:11,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:11,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:03:11,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425668817] [2020-11-07 00:03:11,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:03:11,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:12,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:03:12,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:03:12,009 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 3 states. [2020-11-07 00:03:13,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:13,812 INFO L93 Difference]: Finished difference Result 586 states and 697 transitions. [2020-11-07 00:03:13,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:03:13,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:03:13,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:13,830 INFO L225 Difference]: With dead ends: 586 [2020-11-07 00:03:13,830 INFO L226 Difference]: Without dead ends: 354 [2020-11-07 00:03:13,836 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 [2020-11-07 00:03:13,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-11-07 00:03:14,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 308. [2020-11-07 00:03:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-11-07 00:03:14,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 338 transitions. [2020-11-07 00:03:14,026 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 338 transitions. Word has length 159 [2020-11-07 00:03:14,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:14,026 INFO L481 AbstractCegarLoop]: Abstraction has 308 states and 338 transitions. [2020-11-07 00:03:14,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:03:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 338 transitions. [2020-11-07 00:03:14,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:03:14,032 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:14,032 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] [2020-11-07 00:03:14,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:03:14,033 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]=== [2020-11-07 00:03:14,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:14,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1523405114, now seen corresponding path program 1 times [2020-11-07 00:03:14,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:14,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198647902] [2020-11-07 00:03:14,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:14,039 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,561 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:14,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:03:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:03:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:03:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:14,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198647902] [2020-11-07 00:03:14,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:14,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:03:14,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749662006] [2020-11-07 00:03:14,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:03:14,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:14,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:03:14,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:03:14,686 INFO L87 Difference]: Start difference. First operand 308 states and 338 transitions. Second operand 4 states. [2020-11-07 00:03:15,502 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:03:17,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:17,182 INFO L93 Difference]: Finished difference Result 490 states and 556 transitions. [2020-11-07 00:03:17,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:03:17,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:03:17,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:17,188 INFO L225 Difference]: With dead ends: 490 [2020-11-07 00:03:17,188 INFO L226 Difference]: Without dead ends: 337 [2020-11-07 00:03:17,190 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 [2020-11-07 00:03:17,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-11-07 00:03:17,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 298. [2020-11-07 00:03:17,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-07 00:03:17,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 325 transitions. [2020-11-07 00:03:17,300 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 325 transitions. Word has length 160 [2020-11-07 00:03:17,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:17,301 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 325 transitions. [2020-11-07 00:03:17,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:03:17,301 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 325 transitions. [2020-11-07 00:03:17,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 00:03:17,304 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:17,305 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] [2020-11-07 00:03:17,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:03:17,305 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]=== [2020-11-07 00:03:17,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:17,306 INFO L82 PathProgramCache]: Analyzing trace with hash 55606011, now seen corresponding path program 1 times [2020-11-07 00:03:17,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:17,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374906999] [2020-11-07 00:03:17,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:17,310 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,767 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:17,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:03:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:03:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:03:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:03:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:17,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374906999] [2020-11-07 00:03:17,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:17,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:03:17,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896496106] [2020-11-07 00:03:17,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:03:17,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:17,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:03:17,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:03:17,943 INFO L87 Difference]: Start difference. First operand 298 states and 325 transitions. Second operand 10 states. [2020-11-07 00:03:18,674 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:19,112 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:03:19,567 WARN L194 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 00:03:19,964 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:20,356 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:20,730 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:21,848 WARN L194 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:03:25,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:25,686 INFO L93 Difference]: Finished difference Result 835 states and 974 transitions. [2020-11-07 00:03:25,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 00:03:25,687 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 00:03:25,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:25,693 INFO L225 Difference]: With dead ends: 835 [2020-11-07 00:03:25,694 INFO L226 Difference]: Without dead ends: 652 [2020-11-07 00:03:25,695 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 [2020-11-07 00:03:25,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-11-07 00:03:25,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 551. [2020-11-07 00:03:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-11-07 00:03:25,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 620 transitions. [2020-11-07 00:03:25,949 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 620 transitions. Word has length 173 [2020-11-07 00:03:25,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:25,949 INFO L481 AbstractCegarLoop]: Abstraction has 551 states and 620 transitions. [2020-11-07 00:03:25,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:03:25,950 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 620 transitions. [2020-11-07 00:03:25,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:03:25,957 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:25,958 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] [2020-11-07 00:03:25,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:03:25,959 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]=== [2020-11-07 00:03:25,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:25,965 INFO L82 PathProgramCache]: Analyzing trace with hash -904576683, now seen corresponding path program 1 times [2020-11-07 00:03:25,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:25,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372563395] [2020-11-07 00:03:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:25,971 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,433 WARN L194 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:26,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:03:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:03:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:03:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:03:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:26,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:26,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372563395] [2020-11-07 00:03:26,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:26,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:03:26,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253978189] [2020-11-07 00:03:26,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:03:26,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:26,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:03:26,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:03:26,610 INFO L87 Difference]: Start difference. First operand 551 states and 620 transitions. Second operand 9 states. [2020-11-07 00:03:27,267 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:29,852 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:30,376 WARN L194 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:30,884 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:31,363 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:31,750 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:32,146 WARN L194 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:32,539 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:34,032 INFO L93 Difference]: Finished difference Result 1512 states and 1824 transitions. [2020-11-07 00:03:34,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:03:34,033 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:03:34,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:34,041 INFO L225 Difference]: With dead ends: 1512 [2020-11-07 00:03:34,041 INFO L226 Difference]: Without dead ends: 1076 [2020-11-07 00:03:34,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:03:34,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2020-11-07 00:03:34,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 969. [2020-11-07 00:03:34,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2020-11-07 00:03:34,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1117 transitions. [2020-11-07 00:03:34,445 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1117 transitions. Word has length 178 [2020-11-07 00:03:34,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:34,446 INFO L481 AbstractCegarLoop]: Abstraction has 969 states and 1117 transitions. [2020-11-07 00:03:34,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:03:34,446 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1117 transitions. [2020-11-07 00:03:34,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:34,455 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:34,455 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] [2020-11-07 00:03:34,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:03:34,456 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]=== [2020-11-07 00:03:34,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:34,457 INFO L82 PathProgramCache]: Analyzing trace with hash 167131372, now seen corresponding path program 1 times [2020-11-07 00:03:34,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:34,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733659825] [2020-11-07 00:03:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:34,461 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:34,547 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:34,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:34,926 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:03:34,926 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:03:34,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:03:34,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:03:34 BoogieIcfgContainer [2020-11-07 00:03:34,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:03:34,970 INFO L168 Benchmark]: Toolchain (without parser) took 26275.78 ms. Allocated memory was 153.1 MB in the beginning and 508.6 MB in the end (delta: 355.5 MB). Free memory was 135.7 MB in the beginning and 460.2 MB in the end (delta: -324.5 MB). Peak memory consumption was 313.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:34,972 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory was 127.3 MB in the beginning and 127.2 MB in the end (delta: 109.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:03:34,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.76 ms. Allocated memory is still 153.1 MB. Free memory was 135.0 MB in the beginning and 127.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:34,979 INFO L168 Benchmark]: Boogie Preprocessor took 124.02 ms. Allocated memory is still 153.1 MB. Free memory was 127.3 MB in the beginning and 123.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:34,980 INFO L168 Benchmark]: RCFGBuilder took 1455.56 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 123.3 MB in the beginning and 161.1 MB in the end (delta: -37.7 MB). Peak memory consumption was 61.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:34,981 INFO L168 Benchmark]: TraceAbstraction took 24044.27 ms. Allocated memory was 188.7 MB in the beginning and 508.6 MB in the end (delta: 319.8 MB). Free memory was 160.6 MB in the beginning and 460.2 MB in the end (delta: -299.6 MB). Peak memory consumption was 302.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:34,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory was 127.3 MB in the beginning and 127.2 MB in the end (delta: 109.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 635.76 ms. Allocated memory is still 153.1 MB. Free memory was 135.0 MB in the beginning and 127.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 124.02 ms. Allocated memory is still 153.1 MB. Free memory was 127.3 MB in the beginning and 123.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1455.56 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 123.3 MB in the beginning and 161.1 MB in the end (delta: -37.7 MB). Peak memory consumption was 61.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24044.27 ms. Allocated memory was 188.7 MB in the beginning and 508.6 MB in the end (delta: 319.8 MB). Free memory was 160.6 MB in the beginning and 460.2 MB in the end (delta: -299.6 MB). Peak memory consumption was 302.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L943] int splverifierCounter ; [L944] int tmp ; [L945] int tmp___0 ; [L946] int tmp___1 ; [L947] int tmp___2 ; [L950] splverifierCounter = 0 [L952] COND TRUE 1 [L954] COND TRUE splverifierCounter < 4 [L960] tmp = __VERIFIER_nondet_int() [L962] COND TRUE \read(tmp) [L964] CALL waterRise() [L607] COND TRUE waterLevel < 2 [L608] waterLevel = waterLevel + 1 [L964] RET waterRise() [L970] tmp___0 = __VERIFIER_nondet_int() [L972] COND FALSE !(\read(tmp___0)) [L980] tmp___2 = __VERIFIER_nondet_int() [L982] COND FALSE !(\read(tmp___2)) [L988] tmp___1 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___1) [L992] CALL stopSystem() [L922] COND FALSE !(\read(pumpRunning)) [L929] systemActive = 0 [L992] RET stopSystem() [L999] CALL timeShift() [L703] COND FALSE !(\read(pumpRunning)) [L710] COND FALSE !(\read(systemActive)) [L718] CALL __utac_acc__Specification3_spec__1() [L552] int tmp ; [L553] int tmp___0 ; [L554] int tmp___1 ; [L558] CALL, EXPR isMethaneLevelCritical() [L628] int retValue_acc ; [L631] retValue_acc = methaneLevelCritical [L632] return (retValue_acc); [L558] RET, EXPR isMethaneLevelCritical() [L558] tmp = isMethaneLevelCritical() [L560] COND FALSE !(\read(tmp)) [L564] CALL, EXPR getWaterLevel() [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); [L564] RET, EXPR getWaterLevel() [L564] tmp___0 = getWaterLevel() [L566] COND TRUE tmp___0 == 2 [L568] CALL, EXPR isPumpRunning() [L836] int retValue_acc ; [L839] retValue_acc = pumpRunning [L840] return (retValue_acc); [L568] RET, EXPR isPumpRunning() [L568] tmp___1 = isPumpRunning() [L570] COND FALSE !(\read(tmp___1)) [L574] CALL __automaton_fail() [L1015] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product56.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 678 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 19.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1186 SDtfs, 1676 SDslu, 1662 SDs, 0 SdLazy, 3878 SolverSat, 585 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=969occurred 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: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 293 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...