/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_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:00:12,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:00:12,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:00:12,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:00:12,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:00:12,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:00:12,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:00:12,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:00:12,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:00:12,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:00:12,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:00:12,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:00:12,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:00:12,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:00:12,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:00:12,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:00:12,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:00:12,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:00:12,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:00:12,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:00:12,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:00:12,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:00:12,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:00:12,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:00:12,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:00:12,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:00:12,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:00:12,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:00:12,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:00:12,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:00:12,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:00:12,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:00:12,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:00:12,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:00:12,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:00:12,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:00:12,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:00:12,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:00:12,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:00:12,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:00:12,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:00:12,355 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 00:00:12,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:00:12,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:00:12,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:00:12,401 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:00:12,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:00:12,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:00:12,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:00:12,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:00:12,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:00:12,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:00:12,404 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:00:12,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:00:12,404 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:00:12,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:00:12,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:00:12,405 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:00:12,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:00:12,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:00:12,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:00:12,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:00:12,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:00:12,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:00:12,407 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:00:12,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:00:12,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:00:12,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:00:12,887 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:00:12,888 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:00:12,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-11-07 00:00:12,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc130a12/b7cf7350c4f741509a4db684f0d0b563/FLAGc551f7afb [2020-11-07 00:00:13,656 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:00:13,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-11-07 00:00:13,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc130a12/b7cf7350c4f741509a4db684f0d0b563/FLAGc551f7afb [2020-11-07 00:00:13,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc130a12/b7cf7350c4f741509a4db684f0d0b563 [2020-11-07 00:00:13,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:00:13,994 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:00:13,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:14,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:00:14,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:00:14,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:13" (1/1) ... [2020-11-07 00:00:14,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fd40a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:14, skipping insertion in model container [2020-11-07 00:00:14,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:13" (1/1) ... [2020-11-07 00:00:14,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:00:14,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:00:14,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:14,462 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:00:14,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:00:14,576 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:00:14,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:14 WrapperNode [2020-11-07 00:00:14,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:00:14,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:00:14,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:00:14,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:00:14,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:14" (1/1) ... [2020-11-07 00:00:14,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:14" (1/1) ... [2020-11-07 00:00:14,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:14" (1/1) ... [2020-11-07 00:00:14,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:14" (1/1) ... [2020-11-07 00:00:14,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:14" (1/1) ... [2020-11-07 00:00:14,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:14" (1/1) ... [2020-11-07 00:00:14,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:14" (1/1) ... [2020-11-07 00:00:14,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:00:14,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:00:14,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:00:14,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:00:14,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:14" (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 00:00:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:00:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:00:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:00:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:00:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:00:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:00:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:00:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:00:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:00:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:00:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:00:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:00:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:00:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:00:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:00:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:00:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:00:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:00:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:00:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:00:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:00:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:00:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:00:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:00:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:00:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:00:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:00:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:00:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:00:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:00:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:00:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:00:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:00:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:00:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:00:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:00:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:00:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:00:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:00:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:00:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:00:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:00:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:00:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:00:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:00:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:00:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:00:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:00:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:00:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:00:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:00:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:00:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:00:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:00:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:00:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:00:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:00:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:00:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:00:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:00:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:00:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:00:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:00:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:00:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:00:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:00:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:00:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:00:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:00:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:00:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:00:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:00:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:00:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:00:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:00:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:00:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:00:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:00:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:00:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:00:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:00:16,120 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:00:16,120 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:00:16,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:16 BoogieIcfgContainer [2020-11-07 00:00:16,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:00:16,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:00:16,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:00:16,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:00:16,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:00:13" (1/3) ... [2020-11-07 00:00:16,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53018d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:16, skipping insertion in model container [2020-11-07 00:00:16,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:14" (2/3) ... [2020-11-07 00:00:16,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53018d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:16, skipping insertion in model container [2020-11-07 00:00:16,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:16" (3/3) ... [2020-11-07 00:00:16,133 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2020-11-07 00:00:16,149 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:00:16,154 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:00:16,166 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:00:16,191 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:00:16,191 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:00:16,192 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:00:16,192 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:00:16,192 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:00:16,192 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:00:16,192 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:00:16,192 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:00:16,215 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-11-07 00:00:16,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:00:16,236 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:16,237 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 00:00:16,238 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 00:00:16,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:16,245 INFO L82 PathProgramCache]: Analyzing trace with hash -20690576, now seen corresponding path program 1 times [2020-11-07 00:00:16,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:16,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533998223] [2020-11-07 00:00:16,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:16,328 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:17,021 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:17,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:17,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:17,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:17,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:17,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:17,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:00:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:17,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:00:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:17,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:00:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:17,259 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 00:00:17,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533998223] [2020-11-07 00:00:17,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:17,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:00:17,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936188711] [2020-11-07 00:00:17,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:00:17,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:17,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:00:17,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:00:17,298 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-11-07 00:00:18,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:18,971 INFO L93 Difference]: Finished difference Result 423 states and 506 transitions. [2020-11-07 00:00:18,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:00:18,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:00:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:18,990 INFO L225 Difference]: With dead ends: 423 [2020-11-07 00:00:18,990 INFO L226 Difference]: Without dead ends: 269 [2020-11-07 00:00:18,995 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 00:00:19,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-11-07 00:00:19,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 230. [2020-11-07 00:00:19,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-07 00:00:19,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 248 transitions. [2020-11-07 00:00:19,165 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 248 transitions. Word has length 159 [2020-11-07 00:00:19,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:19,166 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 248 transitions. [2020-11-07 00:00:19,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:00:19,166 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 248 transitions. [2020-11-07 00:00:19,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:00:19,171 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:19,171 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 00:00:19,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:00:19,172 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 00:00:19,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:19,173 INFO L82 PathProgramCache]: Analyzing trace with hash -936596827, now seen corresponding path program 1 times [2020-11-07 00:00:19,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:19,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459805508] [2020-11-07 00:00:19,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:19,178 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:19,742 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:19,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:19,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:19,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:19,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:19,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:19,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:00:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:19,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:00:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:19,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:00:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:19,864 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 00:00:19,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459805508] [2020-11-07 00:00:19,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:19,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:00:19,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195918749] [2020-11-07 00:00:19,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:00:19,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:19,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:00:19,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:00:19,870 INFO L87 Difference]: Start difference. First operand 230 states and 248 transitions. Second operand 4 states. [2020-11-07 00:00:20,796 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:00:21,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:21,776 INFO L93 Difference]: Finished difference Result 337 states and 377 transitions. [2020-11-07 00:00:21,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:00:21,777 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:00:21,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:21,784 INFO L225 Difference]: With dead ends: 337 [2020-11-07 00:00:21,784 INFO L226 Difference]: Without dead ends: 252 [2020-11-07 00:00:21,791 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 00:00:21,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-11-07 00:00:21,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 220. [2020-11-07 00:00:21,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-11-07 00:00:21,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 235 transitions. [2020-11-07 00:00:21,911 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 235 transitions. Word has length 160 [2020-11-07 00:00:21,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:21,912 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 235 transitions. [2020-11-07 00:00:21,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:00:21,912 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 235 transitions. [2020-11-07 00:00:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:00:21,919 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:21,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:00:21,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:00:21,921 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 00:00:21,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:21,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1341556427, now seen corresponding path program 1 times [2020-11-07 00:00:21,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:21,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079355891] [2020-11-07 00:00:21,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:21,927 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:22,516 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:22,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:22,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:22,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:22,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:22,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:22,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:00:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:22,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:00:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:22,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:00:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:22,746 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 00:00:22,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079355891] [2020-11-07 00:00:22,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:22,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:00:22,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200693227] [2020-11-07 00:00:22,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:00:22,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:22,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:00:22,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:00:22,753 INFO L87 Difference]: Start difference. First operand 220 states and 235 transitions. Second operand 9 states. [2020-11-07 00:00:23,459 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:23,968 WARN L194 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:00:24,393 WARN L194 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:00:24,785 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:25,146 WARN L194 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:25,530 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:27,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:27,150 INFO L93 Difference]: Finished difference Result 357 states and 402 transitions. [2020-11-07 00:00:27,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:00:27,151 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:00:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:27,156 INFO L225 Difference]: With dead ends: 357 [2020-11-07 00:00:27,156 INFO L226 Difference]: Without dead ends: 252 [2020-11-07 00:00:27,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-07 00:00:27,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-11-07 00:00:27,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 220. [2020-11-07 00:00:27,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-11-07 00:00:27,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 234 transitions. [2020-11-07 00:00:27,238 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 234 transitions. Word has length 169 [2020-11-07 00:00:27,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:27,239 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 234 transitions. [2020-11-07 00:00:27,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:00:27,239 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 234 transitions. [2020-11-07 00:00:27,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 00:00:27,242 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:27,242 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] [2020-11-07 00:00:27,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:00:27,243 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 00:00:27,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:27,244 INFO L82 PathProgramCache]: Analyzing trace with hash -370871702, now seen corresponding path program 1 times [2020-11-07 00:00:27,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:27,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83321050] [2020-11-07 00:00:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:27,248 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,740 WARN L194 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:00:27,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:00:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:00:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:00:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:00:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:00:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 00:00:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:00:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 00:00:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 00:00:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 00:00:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:00:27,967 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 00:00:27,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83321050] [2020-11-07 00:00:27,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:00:27,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:00:27,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730098948] [2020-11-07 00:00:27,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:00:27,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:00:27,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:00:27,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:00:27,971 INFO L87 Difference]: Start difference. First operand 220 states and 234 transitions. Second operand 9 states. [2020-11-07 00:00:28,631 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:30,763 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:31,215 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:31,661 WARN L194 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:32,071 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:00:32,451 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:33,051 WARN L194 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:00:33,482 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:00:33,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:00:33,887 INFO L93 Difference]: Finished difference Result 496 states and 587 transitions. [2020-11-07 00:00:33,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:00:33,887 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2020-11-07 00:00:33,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:00:33,897 INFO L225 Difference]: With dead ends: 496 [2020-11-07 00:00:33,897 INFO L226 Difference]: Without dead ends: 391 [2020-11-07 00:00:33,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:00:33,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-11-07 00:00:34,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 316. [2020-11-07 00:00:34,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-11-07 00:00:34,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 347 transitions. [2020-11-07 00:00:34,072 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 347 transitions. Word has length 177 [2020-11-07 00:00:34,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:00:34,073 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 347 transitions. [2020-11-07 00:00:34,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:00:34,074 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 347 transitions. [2020-11-07 00:00:34,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-11-07 00:00:34,085 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:00:34,089 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] [2020-11-07 00:00:34,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:00:34,090 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 00:00:34,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:00:34,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1502642453, now seen corresponding path program 1 times [2020-11-07 00:00:34,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:00:34,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1813598996] [2020-11-07 00:00:34,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:00:34,096 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:00:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:00:34,189 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:00:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:00:34,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:00:34,455 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:00:34,456 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:00:34,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:00:34,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:00:34 BoogieIcfgContainer [2020-11-07 00:00:34,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:00:34,495 INFO L168 Benchmark]: Toolchain (without parser) took 20506.56 ms. Allocated memory was 165.7 MB in the beginning and 443.5 MB in the end (delta: 277.9 MB). Free memory was 139.9 MB in the beginning and 369.4 MB in the end (delta: -229.5 MB). Peak memory consumption was 48.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:34,497 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 165.7 MB. Free memory is still 142.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:00:34,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.01 ms. Allocated memory is still 165.7 MB. Free memory was 139.4 MB in the beginning and 119.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:34,505 INFO L168 Benchmark]: Boogie Preprocessor took 93.97 ms. Allocated memory is still 165.7 MB. Free memory was 119.4 MB in the beginning and 115.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:34,507 INFO L168 Benchmark]: RCFGBuilder took 1450.53 ms. Allocated memory was 165.7 MB in the beginning and 207.6 MB in the end (delta: 41.9 MB). Free memory was 115.4 MB in the beginning and 153.6 MB in the end (delta: -38.1 MB). Peak memory consumption was 35.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:34,507 INFO L168 Benchmark]: TraceAbstraction took 18367.21 ms. Allocated memory was 207.6 MB in the beginning and 443.5 MB in the end (delta: 235.9 MB). Free memory was 153.0 MB in the beginning and 369.4 MB in the end (delta: -216.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:00:34,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 165.7 MB. Free memory is still 142.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 578.01 ms. Allocated memory is still 165.7 MB. Free memory was 139.4 MB in the beginning and 119.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.97 ms. Allocated memory is still 165.7 MB. Free memory was 119.4 MB in the beginning and 115.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1450.53 ms. Allocated memory was 165.7 MB in the beginning and 207.6 MB in the end (delta: 41.9 MB). Free memory was 115.4 MB in the beginning and 153.6 MB in the end (delta: -38.1 MB). Peak memory consumption was 35.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18367.21 ms. Allocated memory was 207.6 MB in the beginning and 443.5 MB in the end (delta: 235.9 MB). Free memory was 153.0 MB in the beginning and 369.4 MB in the end (delta: -216.4 MB). Peak memory consumption was 19.5 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: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L564] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int waterLevel = 1; [L763] int methaneLevelCritical = 0; [L372] int retValue_acc ; [L373] int tmp ; [L377] FCALL select_helpers() [L378] FCALL select_features() [L379] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L379] RET, EXPR valid_product() [L379] tmp = valid_product() [L381] COND TRUE \read(tmp) [L383] FCALL setup() [L384] CALL runTest() [L366] CALL test() [L235] int splverifierCounter ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L242] splverifierCounter = 0 [L244] COND TRUE 1 [L246] COND TRUE splverifierCounter < 4 [L252] tmp = __VERIFIER_nondet_int() [L254] COND TRUE \read(tmp) [L256] CALL waterRise() [L780] COND TRUE waterLevel < 2 [L781] waterLevel = waterLevel + 1 [L256] RET waterRise() [L262] tmp___0 = __VERIFIER_nondet_int() [L264] COND FALSE !(\read(tmp___0)) [L272] tmp___2 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp___2) [L287] CALL timeShift() [L105] COND FALSE !(\read(pumpRunning)) [L112] COND TRUE \read(systemActive) [L114] CALL processEnvironment() [L134] int tmp ; [L137] COND FALSE !(\read(pumpRunning)) [L152] FCALL processEnvironment__wrappee__base() [L114] RET processEnvironment() [L120] CALL __utac_acc__Specification3_spec__1() [L843] int tmp ; [L844] int tmp___0 ; [L845] int tmp___1 ; [L849] CALL, EXPR isMethaneLevelCritical() [L801] int retValue_acc ; [L804] retValue_acc = methaneLevelCritical [L805] return (retValue_acc); [L849] RET, EXPR isMethaneLevelCritical() [L849] tmp = isMethaneLevelCritical() [L851] COND FALSE !(\read(tmp)) [L855] CALL, EXPR getWaterLevel() [L833] int retValue_acc ; [L836] retValue_acc = waterLevel [L837] return (retValue_acc); [L855] RET, EXPR getWaterLevel() [L855] tmp___0 = getWaterLevel() [L857] COND TRUE tmp___0 == 2 [L859] CALL, EXPR isPumpRunning() [L186] int retValue_acc ; [L189] retValue_acc = pumpRunning [L190] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] tmp___1 = isPumpRunning() [L861] COND FALSE !(\read(tmp___1)) [L865] CALL __automaton_fail() [L84] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product05.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 603 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 842 SDtfs, 961 SDslu, 1157 SDs, 0 SdLazy, 2164 SolverSat, 325 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=316occurred 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: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 178 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...