/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_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:02:29,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:02:29,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:02:29,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:02:29,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:02:29,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:02:29,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:02:29,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:02:29,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:02:29,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:02:29,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:02:29,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:02:29,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:02:29,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:02:29,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:02:29,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:02:29,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:02:29,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:02:29,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:02:29,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:02:29,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:02:29,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:02:29,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:02:29,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:02:29,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:02:29,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:02:29,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:02:29,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:02:29,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:02:29,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:02:29,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:02:29,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:02:29,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:02:29,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:02:29,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:02:29,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:02:29,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:02:29,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:02:29,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:02:29,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:02:29,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:02:29,371 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 00:02:29,382 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:02:29,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:02:29,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:02:29,384 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:02:29,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:02:29,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:02:29,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:02:29,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:02:29,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:02:29,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:02:29,386 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:02:29,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:02:29,386 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:02:29,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:02:29,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:02:29,387 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:02:29,387 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:02:29,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:02:29,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:02:29,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:02:29,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:02:29,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:02:29,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:02:29,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:02:29,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:02:29,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:02:29,768 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:02:29,769 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:02:29,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-11-07 00:02:29,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71d0c7e36/2f93b675cd0c4743852f452db010ca2f/FLAG15b9f92d1 [2020-11-07 00:02:30,504 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:02:30,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-11-07 00:02:30,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71d0c7e36/2f93b675cd0c4743852f452db010ca2f/FLAG15b9f92d1 [2020-11-07 00:02:30,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71d0c7e36/2f93b675cd0c4743852f452db010ca2f [2020-11-07 00:02:30,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:02:30,810 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:02:30,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:30,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:02:30,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:02:30,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:30" (1/1) ... [2020-11-07 00:02:30,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8e2b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:30, skipping insertion in model container [2020-11-07 00:02:30,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:30" (1/1) ... [2020-11-07 00:02:30,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:02:30,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:02:31,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:31,306 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:02:31,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:31,516 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:02:31,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:31 WrapperNode [2020-11-07 00:02:31,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:31,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:02:31,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:02:31,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:02:31,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:31" (1/1) ... [2020-11-07 00:02:31,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:31" (1/1) ... [2020-11-07 00:02:31,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:31" (1/1) ... [2020-11-07 00:02:31,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:31" (1/1) ... [2020-11-07 00:02:31,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:31" (1/1) ... [2020-11-07 00:02:31,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:31" (1/1) ... [2020-11-07 00:02:31,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:31" (1/1) ... [2020-11-07 00:02:31,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:02:31,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:02:31,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:02:31,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:02:31,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:31" (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 00:02:31,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:02:31,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:02:31,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:31,686 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:02:31,686 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:02:31,686 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:02:31,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:02:31,687 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:02:31,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:02:31,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:31,687 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:02:31,688 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:02:31,688 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:02:31,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:02:31,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:02:31,688 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:02:31,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 00:02:31,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:02:31,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:02:31,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:02:31,689 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:02:31,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:02:31,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:31,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:31,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:31,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:02:31,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:02:31,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:02:31,691 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:02:31,691 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:02:31,691 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:02:31,692 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-11-07 00:02:31,692 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:02:31,692 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:02:31,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:02:31,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:02:31,692 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:02:31,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 00:02:31,693 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:02:31,693 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 00:02:31,693 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:02:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:02:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:02:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:02:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:02:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:02:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:02:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:02:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:02:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:02:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:02:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:02:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:02:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:02:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:02:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:02:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:02:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:02:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:02:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:02:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:02:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:02:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:02:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:02:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:02:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:02:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 00:02:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:02:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:02:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:02:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:02:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:02:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:02:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:02:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:02:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:02:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:02:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:02:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:02:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:02:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:02:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:02:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 00:02:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:02:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:02:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 00:02:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-11-07 00:02:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:02:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:02:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:02:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:02:33,331 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:02:33,331 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:02:33,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:33 BoogieIcfgContainer [2020-11-07 00:02:33,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:02:33,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:02:33,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:02:33,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:02:33,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:02:30" (1/3) ... [2020-11-07 00:02:33,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf51dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:33, skipping insertion in model container [2020-11-07 00:02:33,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:31" (2/3) ... [2020-11-07 00:02:33,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf51dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:33, skipping insertion in model container [2020-11-07 00:02:33,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:33" (3/3) ... [2020-11-07 00:02:33,343 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-11-07 00:02:33,359 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:02:33,365 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:02:33,374 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:02:33,396 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:02:33,396 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:02:33,396 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:02:33,396 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:02:33,396 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:02:33,397 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:02:33,397 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:02:33,397 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:02:33,422 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states. [2020-11-07 00:02:33,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:02:33,455 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:33,456 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 00:02:33,457 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 00:02:33,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:33,474 INFO L82 PathProgramCache]: Analyzing trace with hash -573451514, now seen corresponding path program 1 times [2020-11-07 00:02:33,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:33,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671099896] [2020-11-07 00:02:33,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:33,554 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:34,596 WARN L194 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:34,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:34,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:34,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:34,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:34,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:34,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:02:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:34,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:34,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:34,813 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 00:02:34,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671099896] [2020-11-07 00:02:34,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:34,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:02:34,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712017068] [2020-11-07 00:02:34,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:02:34,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:34,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:02:34,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:34,850 INFO L87 Difference]: Start difference. First operand 328 states. Second operand 3 states. [2020-11-07 00:02:37,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:37,299 INFO L93 Difference]: Finished difference Result 516 states and 609 transitions. [2020-11-07 00:02:37,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:02:37,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:02:37,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:37,319 INFO L225 Difference]: With dead ends: 516 [2020-11-07 00:02:37,319 INFO L226 Difference]: Without dead ends: 318 [2020-11-07 00:02:37,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:37,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-11-07 00:02:37,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 274. [2020-11-07 00:02:37,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-11-07 00:02:37,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 296 transitions. [2020-11-07 00:02:37,473 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 296 transitions. Word has length 159 [2020-11-07 00:02:37,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:37,474 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 296 transitions. [2020-11-07 00:02:37,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:02:37,475 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 296 transitions. [2020-11-07 00:02:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:02:37,479 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:37,480 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 00:02:37,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:02:37,480 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 00:02:37,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:37,481 INFO L82 PathProgramCache]: Analyzing trace with hash -368518360, now seen corresponding path program 1 times [2020-11-07 00:02:37,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:37,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24914777] [2020-11-07 00:02:37,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:37,486 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:38,175 WARN L194 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:38,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:38,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:38,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:38,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:38,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:38,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:02:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:38,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:02:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:38,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:02:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:38,271 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 00:02:38,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24914777] [2020-11-07 00:02:38,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:38,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:02:38,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939973459] [2020-11-07 00:02:38,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:02:38,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:38,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:02:38,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:02:38,276 INFO L87 Difference]: Start difference. First operand 274 states and 296 transitions. Second operand 4 states. [2020-11-07 00:02:39,522 WARN L194 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:41,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:41,264 INFO L93 Difference]: Finished difference Result 417 states and 466 transitions. [2020-11-07 00:02:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:02:41,266 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:02:41,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:41,270 INFO L225 Difference]: With dead ends: 417 [2020-11-07 00:02:41,271 INFO L226 Difference]: Without dead ends: 301 [2020-11-07 00:02:41,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:02:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-11-07 00:02:41,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 264. [2020-11-07 00:02:41,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-11-07 00:02:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 283 transitions. [2020-11-07 00:02:41,391 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 283 transitions. Word has length 160 [2020-11-07 00:02:41,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:41,394 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 283 transitions. [2020-11-07 00:02:41,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:02:41,395 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 283 transitions. [2020-11-07 00:02:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 00:02:41,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:41,398 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 00:02:41,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:02:41,398 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 00:02:41,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:41,399 INFO L82 PathProgramCache]: Analyzing trace with hash -559804130, now seen corresponding path program 1 times [2020-11-07 00:02:41,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:41,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615100121] [2020-11-07 00:02:41,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:41,403 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,090 WARN L194 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:42,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:02:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:02:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:02:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:02:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,293 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 00:02:42,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615100121] [2020-11-07 00:02:42,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:42,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:02:42,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873866933] [2020-11-07 00:02:42,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:02:42,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:42,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:02:42,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:02:42,303 INFO L87 Difference]: Start difference. First operand 264 states and 283 transitions. Second operand 10 states. [2020-11-07 00:02:43,319 WARN L194 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:44,128 WARN L194 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:02:44,802 WARN L194 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 00:02:45,480 WARN L194 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:46,125 WARN L194 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:46,759 WARN L194 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:48,414 WARN L194 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:52,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:52,823 INFO L93 Difference]: Finished difference Result 729 states and 840 transitions. [2020-11-07 00:02:52,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 00:02:52,829 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 00:02:52,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:52,837 INFO L225 Difference]: With dead ends: 729 [2020-11-07 00:02:52,837 INFO L226 Difference]: Without dead ends: 580 [2020-11-07 00:02:52,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-07 00:02:52,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-11-07 00:02:53,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 471. [2020-11-07 00:02:53,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-11-07 00:02:53,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 520 transitions. [2020-11-07 00:02:53,044 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 520 transitions. Word has length 173 [2020-11-07 00:02:53,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:53,044 INFO L481 AbstractCegarLoop]: Abstraction has 471 states and 520 transitions. [2020-11-07 00:02:53,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:02:53,045 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 520 transitions. [2020-11-07 00:02:53,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:02:53,048 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:53,048 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 00:02:53,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:02:53,049 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 00:02:53,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:53,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1075510106, now seen corresponding path program 1 times [2020-11-07 00:02:53,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:53,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042479048] [2020-11-07 00:02:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:53,053 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,731 WARN L194 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:53,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:02:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:02:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:02:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:53,951 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 00:02:53,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042479048] [2020-11-07 00:02:53,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:53,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:53,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25419946] [2020-11-07 00:02:53,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:53,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:53,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:53,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:53,954 INFO L87 Difference]: Start difference. First operand 471 states and 520 transitions. Second operand 9 states. [2020-11-07 00:02:54,935 WARN L194 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:57,958 WARN L194 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:58,693 WARN L194 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:59,434 WARN L194 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:00,209 WARN L194 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:00,858 WARN L194 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:03:01,581 WARN L194 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:02,225 WARN L194 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:03:04,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:04,139 INFO L93 Difference]: Finished difference Result 1264 states and 1500 transitions. [2020-11-07 00:03:04,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:03:04,141 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:03:04,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:04,149 INFO L225 Difference]: With dead ends: 1264 [2020-11-07 00:03:04,149 INFO L226 Difference]: Without dead ends: 908 [2020-11-07 00:03:04,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:03:04,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2020-11-07 00:03:04,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 805. [2020-11-07 00:03:04,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2020-11-07 00:03:04,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 909 transitions. [2020-11-07 00:03:04,510 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 909 transitions. Word has length 178 [2020-11-07 00:03:04,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:04,510 INFO L481 AbstractCegarLoop]: Abstraction has 805 states and 909 transitions. [2020-11-07 00:03:04,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:03:04,511 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 909 transitions. [2020-11-07 00:03:04,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:04,515 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:04,515 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 00:03:04,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:03:04,516 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 00:03:04,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:04,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1473250213, now seen corresponding path program 1 times [2020-11-07 00:03:04,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:04,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135443671] [2020-11-07 00:03:04,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:04,520 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:05,178 WARN L194 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:03:05,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:03:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:05,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:03:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:05,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:03:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:05,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:03:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:05,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:03:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:05,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:03:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:05,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:03:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:05,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:03:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:05,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:03:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:05,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-11-07 00:03:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:03:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:03:05,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135443671] [2020-11-07 00:03:05,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:03:05,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:03:05,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366137990] [2020-11-07 00:03:05,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:03:05,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:03:05,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:03:05,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:03:05,371 INFO L87 Difference]: Start difference. First operand 805 states and 909 transitions. Second operand 6 states. [2020-11-07 00:03:06,339 WARN L194 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:10,086 INFO L93 Difference]: Finished difference Result 1863 states and 2192 transitions. [2020-11-07 00:03:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 00:03:10,087 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-11-07 00:03:10,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:10,096 INFO L225 Difference]: With dead ends: 1863 [2020-11-07 00:03:10,096 INFO L226 Difference]: Without dead ends: 1173 [2020-11-07 00:03:10,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:03:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2020-11-07 00:03:10,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1092. [2020-11-07 00:03:10,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1092 states. [2020-11-07 00:03:10,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1237 transitions. [2020-11-07 00:03:10,707 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1237 transitions. Word has length 183 [2020-11-07 00:03:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:10,708 INFO L481 AbstractCegarLoop]: Abstraction has 1092 states and 1237 transitions. [2020-11-07 00:03:10,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:03:10,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1237 transitions. [2020-11-07 00:03:10,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:10,712 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:10,712 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 00:03:10,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:03:10,712 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:10,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:10,713 INFO L82 PathProgramCache]: Analyzing trace with hash 2110951855, now seen corresponding path program 1 times [2020-11-07 00:03:10,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:10,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898493440] [2020-11-07 00:03:10,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:10,717 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:10,801 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:10,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:11,071 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:03:11,071 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:03:11,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:03:11,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:03:11 BoogieIcfgContainer [2020-11-07 00:03:11,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:03:11,099 INFO L168 Benchmark]: Toolchain (without parser) took 40293.52 ms. Allocated memory was 163.6 MB in the beginning and 494.9 MB in the end (delta: 331.4 MB). Free memory was 120.1 MB in the beginning and 397.4 MB in the end (delta: -277.3 MB). Peak memory consumption was 54.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:11,100 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 163.6 MB. Free memory is still 137.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:03:11,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.02 ms. Allocated memory is still 163.6 MB. Free memory was 147.7 MB in the beginning and 138.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:11,102 INFO L168 Benchmark]: Boogie Preprocessor took 87.38 ms. Allocated memory is still 163.6 MB. Free memory was 138.8 MB in the beginning and 134.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:11,103 INFO L168 Benchmark]: RCFGBuilder took 1728.03 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 134.8 MB in the beginning and 173.0 MB in the end (delta: -38.1 MB). Peak memory consumption was 62.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:11,104 INFO L168 Benchmark]: TraceAbstraction took 37761.24 ms. Allocated memory was 197.1 MB in the beginning and 494.9 MB in the end (delta: 297.8 MB). Free memory was 172.4 MB in the beginning and 397.4 MB in the end (delta: -224.9 MB). Peak memory consumption was 72.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:11,107 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 163.6 MB. Free memory is still 137.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 691.02 ms. Allocated memory is still 163.6 MB. Free memory was 147.7 MB in the beginning and 138.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 87.38 ms. Allocated memory is still 163.6 MB. Free memory was 138.8 MB in the beginning and 134.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1728.03 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 134.8 MB in the beginning and 173.0 MB in the end (delta: -38.1 MB). Peak memory consumption was 62.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 37761.24 ms. Allocated memory was 197.1 MB in the beginning and 494.9 MB in the end (delta: 297.8 MB). Free memory was 172.4 MB in the beginning and 397.4 MB in the end (delta: -224.9 MB). Peak memory consumption was 72.3 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; [L187] int waterLevel = 1; [L188] int methaneLevelCritical = 0; [L494] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L695] int pumpRunning = 0; [L696] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] 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() [L889] int splverifierCounter ; [L890] int tmp ; [L891] int tmp___0 ; [L892] int tmp___1 ; [L893] int tmp___2 ; [L896] splverifierCounter = 0 [L898] COND TRUE 1 [L900] COND TRUE splverifierCounter < 4 [L906] tmp = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp) [L910] CALL waterRise() [L205] COND TRUE waterLevel < 2 [L206] waterLevel = waterLevel + 1 [L910] RET waterRise() [L916] tmp___0 = __VERIFIER_nondet_int() [L918] COND FALSE !(\read(tmp___0)) [L926] tmp___2 = __VERIFIER_nondet_int() [L928] COND FALSE !(\read(tmp___2)) [L934] tmp___1 = __VERIFIER_nondet_int() [L936] COND TRUE \read(tmp___1) [L938] CALL stopSystem() [L868] COND FALSE !(\read(pumpRunning)) [L875] systemActive = 0 [L938] RET stopSystem() [L945] CALL timeShift() [L702] COND FALSE !(\read(pumpRunning)) [L709] COND FALSE !(\read(systemActive)) [L717] CALL __utac_acc__Specification3_spec__1() [L151] int tmp ; [L152] int tmp___0 ; [L153] int tmp___1 ; [L157] CALL, EXPR isMethaneLevelCritical() [L226] int retValue_acc ; [L229] retValue_acc = methaneLevelCritical [L230] return (retValue_acc); [L157] RET, EXPR isMethaneLevelCritical() [L157] tmp = isMethaneLevelCritical() [L159] COND FALSE !(\read(tmp)) [L163] CALL, EXPR getWaterLevel() [L258] int retValue_acc ; [L261] retValue_acc = waterLevel [L262] return (retValue_acc); [L163] RET, EXPR getWaterLevel() [L163] tmp___0 = getWaterLevel() [L165] COND TRUE tmp___0 == 2 [L167] CALL, EXPR isPumpRunning() [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); [L167] RET, EXPR isPumpRunning() [L167] tmp___1 = isPumpRunning() [L169] COND FALSE !(\read(tmp___1)) [L173] CALL __automaton_fail() [L320] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product44.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 644 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 30.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1314 SDtfs, 2168 SDslu, 1666 SDs, 0 SdLazy, 3699 SolverSat, 742 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1092occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 374 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...