java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-simple/dll2c_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:04:36,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:04:36,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:04:36,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:04:36,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:04:36,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:04:36,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:04:36,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:04:36,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:04:36,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:04:36,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:04:36,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:04:36,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:04:36,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:04:36,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:04:36,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:04:36,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:04:36,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:04:36,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:04:36,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:04:36,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:04:36,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:04:36,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:04:36,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:04:36,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:04:36,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:04:36,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:04:36,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:04:36,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:04:36,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:04:36,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:04:36,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:04:36,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:04:36,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:04:36,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:04:36,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:04:36,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:04:36,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:04:36,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:04:36,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:04:36,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:04:36,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:04:36,629 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:04:36,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:04:36,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:04:36,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:04:36,631 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:04:36,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:04:36,631 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:04:36,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:04:36,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:04:36,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:04:36,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:04:36,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:04:36,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:04:36,632 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:04:36,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:04:36,633 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:04:36,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:04:36,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:04:36,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:04:36,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:04:36,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:04:36,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:04:36,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:04:36,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:04:36,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:04:36,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:04:36,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:04:36,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:04:36,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:04:36,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:04:36,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:04:36,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:04:36,981 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:04:36,981 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:04:36,982 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_update_all_reverse.i [2019-10-13 21:04:37,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df96e9a88/131c04af29754d1090d7ff507de039be/FLAG942e48f68 [2019-10-13 21:04:37,623 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:04:37,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_update_all_reverse.i [2019-10-13 21:04:37,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df96e9a88/131c04af29754d1090d7ff507de039be/FLAG942e48f68 [2019-10-13 21:04:37,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df96e9a88/131c04af29754d1090d7ff507de039be [2019-10-13 21:04:37,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:04:37,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:04:37,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:37,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:04:37,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:04:37,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:37" (1/1) ... [2019-10-13 21:04:37,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d8c8127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:37, skipping insertion in model container [2019-10-13 21:04:37,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:37" (1/1) ... [2019-10-13 21:04:37,883 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:04:37,923 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:04:38,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:38,386 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:04:38,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:38,528 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:04:38,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:38 WrapperNode [2019-10-13 21:04:38,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:38,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:04:38,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:04:38,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:04:38,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:38" (1/1) ... [2019-10-13 21:04:38,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:38" (1/1) ... [2019-10-13 21:04:38,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:38" (1/1) ... [2019-10-13 21:04:38,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:38" (1/1) ... [2019-10-13 21:04:38,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:38" (1/1) ... [2019-10-13 21:04:38,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:38" (1/1) ... [2019-10-13 21:04:38,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:38" (1/1) ... [2019-10-13 21:04:38,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:04:38,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:04:38,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:04:38,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:04:38,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:38" (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 [2019-10-13 21:04:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:04:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:04:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 21:04:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 21:04:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-13 21:04:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-13 21:04:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-10-13 21:04:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2019-10-13 21:04:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_get_data_at [2019-10-13 21:04:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_update_at [2019-10-13 21:04:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:04:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:04:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 21:04:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 21:04:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 21:04:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 21:04:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 21:04:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 21:04:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 21:04:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 21:04:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 21:04:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 21:04:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 21:04:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 21:04:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 21:04:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 21:04:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 21:04:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 21:04:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 21:04:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 21:04:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 21:04:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 21:04:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 21:04:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 21:04:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 21:04:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 21:04:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 21:04:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 21:04:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 21:04:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 21:04:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 21:04:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 21:04:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 21:04:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 21:04:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 21:04:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 21:04:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 21:04:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 21:04:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 21:04:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 21:04:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 21:04:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 21:04:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 21:04:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 21:04:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 21:04:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 21:04:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 21:04:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 21:04:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 21:04:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 21:04:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 21:04:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 21:04:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 21:04:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 21:04:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:04:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:04:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 21:04:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:04:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 21:04:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 21:04:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 21:04:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 21:04:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 21:04:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 21:04:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 21:04:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 21:04:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 21:04:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:04:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 21:04:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 21:04:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 21:04:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 21:04:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 21:04:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 21:04:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 21:04:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 21:04:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 21:04:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 21:04:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 21:04:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 21:04:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 21:04:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 21:04:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 21:04:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 21:04:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 21:04:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 21:04:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 21:04:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 21:04:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 21:04:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 21:04:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 21:04:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 21:04:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 21:04:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 21:04:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 21:04:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 21:04:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 21:04:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 21:04:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 21:04:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 21:04:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 21:04:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 21:04:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 21:04:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 21:04:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 21:04:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 21:04:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 21:04:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-13 21:04:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-13 21:04:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:04:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:04:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:04:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-10-13 21:04:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2019-10-13 21:04:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:04:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:04:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_get_data_at [2019-10-13 21:04:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:04:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_update_at [2019-10-13 21:04:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:04:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:04:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:04:39,139 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-13 21:04:39,285 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:04:39,286 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-13 21:04:39,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:39 BoogieIcfgContainer [2019-10-13 21:04:39,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:04:39,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:04:39,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:04:39,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:04:39,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:04:37" (1/3) ... [2019-10-13 21:04:39,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f97af72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:39, skipping insertion in model container [2019-10-13 21:04:39,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:38" (2/3) ... [2019-10-13 21:04:39,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f97af72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:39, skipping insertion in model container [2019-10-13 21:04:39,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:39" (3/3) ... [2019-10-13 21:04:39,297 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_update_all_reverse.i [2019-10-13 21:04:39,308 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:04:39,317 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:04:39,330 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:04:39,358 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:04:39,358 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:04:39,358 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:04:39,359 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:04:39,359 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:04:39,359 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:04:39,359 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:04:39,359 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:04:39,381 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2019-10-13 21:04:39,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-13 21:04:39,390 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:39,392 INFO L380 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] [2019-10-13 21:04:39,394 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:39,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:39,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1661227511, now seen corresponding path program 1 times [2019-10-13 21:04:39,412 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:39,413 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971560512] [2019-10-13 21:04:39,413 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:39,413 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:39,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:39,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:39,604 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971560512] [2019-10-13 21:04:39,605 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:39,606 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:04:39,606 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964006667] [2019-10-13 21:04:39,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:39,614 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:39,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:39,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:39,636 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2019-10-13 21:04:39,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:39,690 INFO L93 Difference]: Finished difference Result 97 states and 127 transitions. [2019-10-13 21:04:39,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:39,692 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-10-13 21:04:39,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:39,710 INFO L225 Difference]: With dead ends: 97 [2019-10-13 21:04:39,710 INFO L226 Difference]: Without dead ends: 45 [2019-10-13 21:04:39,718 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:39,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-13 21:04:39,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-10-13 21:04:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-13 21:04:39,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2019-10-13 21:04:39,802 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 32 [2019-10-13 21:04:39,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:39,806 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2019-10-13 21:04:39,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:39,807 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2019-10-13 21:04:39,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-13 21:04:39,812 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:39,812 INFO L380 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] [2019-10-13 21:04:39,813 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:39,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:39,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1248070634, now seen corresponding path program 1 times [2019-10-13 21:04:39,815 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:39,815 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404664413] [2019-10-13 21:04:39,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:39,816 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:39,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:40,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:40,025 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404664413] [2019-10-13 21:04:40,025 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:40,025 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:04:40,026 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696557396] [2019-10-13 21:04:40,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:04:40,028 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:40,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:04:40,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:04:40,029 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand 4 states. [2019-10-13 21:04:40,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:40,087 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2019-10-13 21:04:40,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:04:40,087 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-10-13 21:04:40,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:40,089 INFO L225 Difference]: With dead ends: 68 [2019-10-13 21:04:40,089 INFO L226 Difference]: Without dead ends: 55 [2019-10-13 21:04:40,091 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:04:40,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-13 21:04:40,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2019-10-13 21:04:40,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-13 21:04:40,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2019-10-13 21:04:40,114 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 32 [2019-10-13 21:04:40,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:40,114 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2019-10-13 21:04:40,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:04:40,115 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2019-10-13 21:04:40,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-13 21:04:40,119 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:40,119 INFO L380 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] [2019-10-13 21:04:40,119 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:40,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:40,120 INFO L82 PathProgramCache]: Analyzing trace with hash 2064355028, now seen corresponding path program 1 times [2019-10-13 21:04:40,121 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:40,121 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557427534] [2019-10-13 21:04:40,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:40,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:40,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:40,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557427534] [2019-10-13 21:04:40,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154155012] [2019-10-13 21:04:40,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:40,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:04:40,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:04:40,569 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:40,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:04:40,690 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:04:40,691 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [13] total 14 [2019-10-13 21:04:40,691 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213926000] [2019-10-13 21:04:40,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:04:40,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:40,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:04:40,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-13 21:04:40,693 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 6 states. [2019-10-13 21:04:40,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:40,756 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2019-10-13 21:04:40,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:04:40,756 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-10-13 21:04:40,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:40,758 INFO L225 Difference]: With dead ends: 77 [2019-10-13 21:04:40,758 INFO L226 Difference]: Without dead ends: 51 [2019-10-13 21:04:40,759 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:04:40,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-13 21:04:40,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2019-10-13 21:04:40,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-13 21:04:40,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2019-10-13 21:04:40,767 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 40 [2019-10-13 21:04:40,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:40,768 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2019-10-13 21:04:40,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:04:40,768 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2019-10-13 21:04:40,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-13 21:04:40,769 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:40,770 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:40,974 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:40,975 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:40,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:40,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1202630968, now seen corresponding path program 1 times [2019-10-13 21:04:40,975 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:40,975 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352133291] [2019-10-13 21:04:40,976 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:40,976 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:40,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:41,173 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352133291] [2019-10-13 21:04:41,173 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066453379] [2019-10-13 21:04:41,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:41,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 21:04:41,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:41,398 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:41,399 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:41,519 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:04:41,520 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:04:41,520 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [10] total 12 [2019-10-13 21:04:41,521 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018363731] [2019-10-13 21:04:41,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:04:41,522 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:41,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:04:41,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:04:41,523 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand 7 states. [2019-10-13 21:04:41,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:41,633 INFO L93 Difference]: Finished difference Result 81 states and 94 transitions. [2019-10-13 21:04:41,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:04:41,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-10-13 21:04:41,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:41,639 INFO L225 Difference]: With dead ends: 81 [2019-10-13 21:04:41,639 INFO L226 Difference]: Without dead ends: 60 [2019-10-13 21:04:41,640 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 95 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-10-13 21:04:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-10-13 21:04:41,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2019-10-13 21:04:41,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-10-13 21:04:41,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2019-10-13 21:04:41,661 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 50 [2019-10-13 21:04:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:41,662 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2019-10-13 21:04:41,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:04:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2019-10-13 21:04:41,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 21:04:41,666 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:41,667 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:41,870 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:41,871 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:41,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:41,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1117742799, now seen corresponding path program 1 times [2019-10-13 21:04:41,872 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:41,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151031447] [2019-10-13 21:04:41,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:41,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:41,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 21:04:41,975 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151031447] [2019-10-13 21:04:41,975 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137630865] [2019-10-13 21:04:41,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:42,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:04:42,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:42,140 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 21:04:42,140 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:42,202 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 21:04:42,203 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [2082885048] [2019-10-13 21:04:42,209 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 52 [2019-10-13 21:04:42,258 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:04:42,259 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:04:42,348 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:04:42,349 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Performed 43 root evaluator evaluations with a maximum evaluation depth of 0. Performed 43 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 33 variables. [2019-10-13 21:04:42,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:42,354 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:04:42,451 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 86.04% of their original sizes. [2019-10-13 21:04:42,451 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:04:42,469 INFO L553 sIntCurrentIteration]: We unified 50 AI predicates to 50 [2019-10-13 21:04:42,470 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:04:42,470 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:04:42,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 5, 5] total 15 [2019-10-13 21:04:42,471 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935220675] [2019-10-13 21:04:42,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:04:42,474 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:42,474 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:04:42,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:04:42,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:04:42,475 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 6 states. [2019-10-13 21:04:42,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:42,500 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2019-10-13 21:04:42,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:04:42,500 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2019-10-13 21:04:42,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:42,503 INFO L225 Difference]: With dead ends: 53 [2019-10-13 21:04:42,503 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:04:42,504 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:04:42,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:04:42,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:04:42,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:04:42,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:04:42,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2019-10-13 21:04:42,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:42,511 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:04:42,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:04:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:04:42,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:04:42,711 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:42,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:04:42,833 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:42,833 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:42,833 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:42,833 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-10-13 21:04:42,833 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-10-13 21:04:42,834 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-10-13 21:04:42,834 INFO L446 ceAbstractionStarter]: At program point dll_circular_destroyENTRY(lines 590 600) the Hoare annotation is: true [2019-10-13 21:04:42,834 INFO L443 ceAbstractionStarter]: For program point L591(lines 591 599) no Hoare annotation was computed. [2019-10-13 21:04:42,834 INFO L446 ceAbstractionStarter]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2019-10-13 21:04:42,834 INFO L443 ceAbstractionStarter]: For program point L593-3(lines 593 597) no Hoare annotation was computed. [2019-10-13 21:04:42,834 INFO L443 ceAbstractionStarter]: For program point L591-2(lines 590 600) no Hoare annotation was computed. [2019-10-13 21:04:42,834 INFO L443 ceAbstractionStarter]: For program point dll_circular_destroyEXIT(lines 590 600) no Hoare annotation was computed. [2019-10-13 21:04:42,835 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:42,835 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:42,835 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:42,835 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:42,838 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:42,838 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:42,839 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:42,839 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:04:42,839 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:42,839 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:42,839 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 632) no Hoare annotation was computed. [2019-10-13 21:04:42,839 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 615 634) no Hoare annotation was computed. [2019-10-13 21:04:42,839 INFO L443 ceAbstractionStarter]: For program point L630(line 630) no Hoare annotation was computed. [2019-10-13 21:04:42,840 INFO L439 ceAbstractionStarter]: At program point L626(line 626) the Hoare annotation is: false [2019-10-13 21:04:42,840 INFO L443 ceAbstractionStarter]: For program point L626-1(line 626) no Hoare annotation was computed. [2019-10-13 21:04:42,840 INFO L443 ceAbstractionStarter]: For program point L626-2(lines 626 628) no Hoare annotation was computed. [2019-10-13 21:04:42,840 INFO L439 ceAbstractionStarter]: At program point L622(line 622) the Hoare annotation is: false [2019-10-13 21:04:42,840 INFO L443 ceAbstractionStarter]: For program point L624-2(lines 624 629) no Hoare annotation was computed. [2019-10-13 21:04:42,840 INFO L443 ceAbstractionStarter]: For program point L622-1(lines 620 623) no Hoare annotation was computed. [2019-10-13 21:04:42,840 INFO L439 ceAbstractionStarter]: At program point L624-3(lines 624 629) the Hoare annotation is: false [2019-10-13 21:04:42,841 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 615 634) no Hoare annotation was computed. [2019-10-13 21:04:42,841 INFO L446 ceAbstractionStarter]: At program point L624-4(lines 624 629) the Hoare annotation is: true [2019-10-13 21:04:42,841 INFO L439 ceAbstractionStarter]: At program point L618(line 618) the Hoare annotation is: (and (= main_~data~0 1) (= main_~len~0 2)) [2019-10-13 21:04:42,841 INFO L439 ceAbstractionStarter]: At program point L620-2(lines 620 623) the Hoare annotation is: false [2019-10-13 21:04:42,841 INFO L443 ceAbstractionStarter]: For program point L618-1(line 618) no Hoare annotation was computed. [2019-10-13 21:04:42,841 INFO L443 ceAbstractionStarter]: For program point L620-3(lines 620 623) no Hoare annotation was computed. [2019-10-13 21:04:42,841 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 615 634) the Hoare annotation is: true [2019-10-13 21:04:42,842 INFO L439 ceAbstractionStarter]: At program point L627(lines 615 634) the Hoare annotation is: false [2019-10-13 21:04:42,842 INFO L443 ceAbstractionStarter]: For program point L578-1(line 578) no Hoare annotation was computed. [2019-10-13 21:04:42,842 INFO L439 ceAbstractionStarter]: At program point L575(line 575) the Hoare annotation is: (or (not (= |dll_circular_create_#in~data| 1)) (and (= dll_circular_create_~len 2) (= dll_circular_create_~data 1)) (not (= |dll_circular_create_#in~len| 2))) [2019-10-13 21:04:42,842 INFO L439 ceAbstractionStarter]: At program point L577-2(lines 577 585) the Hoare annotation is: (or (not (= |dll_circular_create_#in~data| 1)) (not (= |dll_circular_create_#in~len| 2))) [2019-10-13 21:04:42,842 INFO L443 ceAbstractionStarter]: For program point dll_circular_createEXIT(lines 574 589) no Hoare annotation was computed. [2019-10-13 21:04:42,842 INFO L443 ceAbstractionStarter]: For program point L575-1(line 575) no Hoare annotation was computed. [2019-10-13 21:04:42,843 INFO L443 ceAbstractionStarter]: For program point L577-3(lines 577 585) no Hoare annotation was computed. [2019-10-13 21:04:42,843 INFO L443 ceAbstractionStarter]: For program point dll_circular_createFINAL(lines 574 589) no Hoare annotation was computed. [2019-10-13 21:04:42,843 INFO L443 ceAbstractionStarter]: For program point L580(lines 580 582) no Hoare annotation was computed. [2019-10-13 21:04:42,843 INFO L446 ceAbstractionStarter]: At program point dll_circular_createENTRY(lines 574 589) the Hoare annotation is: true [2019-10-13 21:04:42,843 INFO L439 ceAbstractionStarter]: At program point L578(line 578) the Hoare annotation is: (or (not (= |dll_circular_create_#in~data| 1)) (not (= |dll_circular_create_#in~len| 2))) [2019-10-13 21:04:42,843 INFO L443 ceAbstractionStarter]: For program point L580-2(lines 580 582) no Hoare annotation was computed. [2019-10-13 21:04:42,843 INFO L446 ceAbstractionStarter]: At program point L609-2(lines 609 612) the Hoare annotation is: true [2019-10-13 21:04:42,844 INFO L443 ceAbstractionStarter]: For program point L609-3(lines 609 612) no Hoare annotation was computed. [2019-10-13 21:04:42,844 INFO L443 ceAbstractionStarter]: For program point dll_circular_update_atFINAL(lines 608 614) no Hoare annotation was computed. [2019-10-13 21:04:42,844 INFO L443 ceAbstractionStarter]: For program point dll_circular_update_atEXIT(lines 608 614) no Hoare annotation was computed. [2019-10-13 21:04:42,844 INFO L446 ceAbstractionStarter]: At program point dll_circular_update_atENTRY(lines 608 614) the Hoare annotation is: true [2019-10-13 21:04:42,844 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 564 573) the Hoare annotation is: true [2019-10-13 21:04:42,844 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2019-10-13 21:04:42,844 INFO L446 ceAbstractionStarter]: At program point L567(line 567) the Hoare annotation is: true [2019-10-13 21:04:42,845 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-10-13 21:04:42,845 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2019-10-13 21:04:42,845 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-10-13 21:04:42,845 INFO L443 ceAbstractionStarter]: For program point dll_circular_get_data_atFINAL(lines 601 607) no Hoare annotation was computed. [2019-10-13 21:04:42,845 INFO L443 ceAbstractionStarter]: For program point dll_circular_get_data_atEXIT(lines 601 607) no Hoare annotation was computed. [2019-10-13 21:04:42,845 INFO L446 ceAbstractionStarter]: At program point dll_circular_get_data_atENTRY(lines 601 607) the Hoare annotation is: true [2019-10-13 21:04:42,845 INFO L446 ceAbstractionStarter]: At program point L602-2(lines 602 605) the Hoare annotation is: true [2019-10-13 21:04:42,846 INFO L443 ceAbstractionStarter]: For program point L602-3(lines 602 605) no Hoare annotation was computed. [2019-10-13 21:04:42,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:04:42 BoogieIcfgContainer [2019-10-13 21:04:42,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:04:42,863 INFO L168 Benchmark]: Toolchain (without parser) took 4993.65 ms. Allocated memory was 144.2 MB in the beginning and 251.1 MB in the end (delta: 107.0 MB). Free memory was 99.2 MB in the beginning and 189.1 MB in the end (delta: -89.9 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:42,864 INFO L168 Benchmark]: CDTParser took 1.26 ms. Allocated memory is still 144.2 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-13 21:04:42,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.05 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.0 MB in the beginning and 166.8 MB in the end (delta: -67.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:42,870 INFO L168 Benchmark]: Boogie Preprocessor took 70.71 ms. Allocated memory is still 201.9 MB. Free memory was 166.8 MB in the beginning and 163.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:42,871 INFO L168 Benchmark]: RCFGBuilder took 687.29 ms. Allocated memory is still 201.9 MB. Free memory was 163.5 MB in the beginning and 114.3 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:42,872 INFO L168 Benchmark]: TraceAbstraction took 3570.72 ms. Allocated memory was 201.9 MB in the beginning and 251.1 MB in the end (delta: 49.3 MB). Free memory was 114.3 MB in the beginning and 189.1 MB in the end (delta: -74.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 21:04:42,881 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 ms. Allocated memory is still 144.2 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 660.05 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.0 MB in the beginning and 166.8 MB in the end (delta: -67.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.71 ms. Allocated memory is still 201.9 MB. Free memory was 166.8 MB in the beginning and 163.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 687.29 ms. Allocated memory is still 201.9 MB. Free memory was 163.5 MB in the beginning and 114.3 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3570.72 ms. Allocated memory was 201.9 MB in the beginning and 251.1 MB in the end (delta: 49.3 MB). Free memory was 114.3 MB in the beginning and 189.1 MB in the end (delta: -74.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 632]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 609]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: !(\old(data) == 1) || !(\old(len) == 2) - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 213 SDtfs, 77 SDslu, 345 SDs, 0 SdLazy, 75 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 262 GetRequests, 222 SyntacticMatches, 7 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 21 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 45 PreInvPairs, 46 NumberOfFragments, 62 HoareAnnotationTreeSize, 45 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 476 ConstructedInterpolants, 0 QuantifiedInterpolants, 31410 SizeOfPredicates, 7 NumberOfNonLiveVariables, 680 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 43/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 145, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9541666666666666, AVG_VARS_REMOVED_DURING_WEAKENING: 1.36, AVG_WEAKENED_CONJUNCTS: 0.48, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...