java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 17:29:51,909 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 17:29:51,911 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 17:29:51,924 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 17:29:51,924 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 17:29:51,925 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 17:29:51,926 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 17:29:51,928 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 17:29:51,930 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 17:29:51,931 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 17:29:51,932 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 17:29:51,932 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 17:29:51,933 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 17:29:51,934 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 17:29:51,938 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 17:29:51,939 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 17:29:51,940 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 17:29:51,942 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 17:29:51,947 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 17:29:51,951 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 17:29:51,952 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 17:29:51,956 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 17:29:51,960 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 17:29:51,978 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-15 17:29:52,005 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 17:29:52,007 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 17:29:52,007 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 17:29:52,008 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 17:29:52,008 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 17:29:52,008 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 17:29:52,008 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 17:29:52,011 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 17:29:52,012 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 17:29:52,012 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 17:29:52,012 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 17:29:52,012 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 17:29:52,013 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 17:29:52,013 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 17:29:52,013 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 17:29:52,014 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 17:29:52,014 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 17:29:52,014 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 17:29:52,014 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 17:29:52,015 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 17:29:52,015 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 17:29:52,015 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 17:29:52,015 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 17:29:52,015 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 17:29:52,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:29:52,016 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 17:29:52,016 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 17:29:52,016 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 17:29:52,018 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 17:29:52,019 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 17:29:52,019 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 17:29:52,019 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 17:29:52,019 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 17:29:52,019 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 17:29:52,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 17:29:52,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 17:29:52,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 17:29:52,108 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 17:29:52,108 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 17:29:52,109 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42_true-unreach-call_false-termination.c [2018-09-15 17:29:52,453 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7329dcb2a/39c0a86fd8604734a8ff7756e1090cde/FLAG6a24254b7 [2018-09-15 17:29:52,750 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 17:29:52,750 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label42_true-unreach-call_false-termination.c [2018-09-15 17:29:52,776 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7329dcb2a/39c0a86fd8604734a8ff7756e1090cde/FLAG6a24254b7 [2018-09-15 17:29:52,791 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7329dcb2a/39c0a86fd8604734a8ff7756e1090cde [2018-09-15 17:29:52,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 17:29:52,804 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 17:29:52,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 17:29:52,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 17:29:52,812 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 17:29:52,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:29:52" (1/1) ... [2018-09-15 17:29:52,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201dfe03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:52, skipping insertion in model container [2018-09-15 17:29:52,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:29:52" (1/1) ... [2018-09-15 17:29:52,829 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 17:29:53,391 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:29:53,414 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 17:29:53,559 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:29:53,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53 WrapperNode [2018-09-15 17:29:53,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 17:29:53,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 17:29:53,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 17:29:53,604 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 17:29:53,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53" (1/1) ... [2018-09-15 17:29:53,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53" (1/1) ... [2018-09-15 17:29:53,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 17:29:53,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 17:29:53,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 17:29:53,723 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 17:29:53,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53" (1/1) ... [2018-09-15 17:29:53,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53" (1/1) ... [2018-09-15 17:29:53,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53" (1/1) ... [2018-09-15 17:29:53,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53" (1/1) ... [2018-09-15 17:29:53,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53" (1/1) ... [2018-09-15 17:29:53,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53" (1/1) ... [2018-09-15 17:29:53,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53" (1/1) ... [2018-09-15 17:29:53,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 17:29:53,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 17:29:53,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 17:29:53,937 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 17:29:53,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53" (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 [2018-09-15 17:29:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 17:29:54,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 17:29:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 17:29:54,010 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 17:29:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 17:29:54,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 17:29:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 17:29:54,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 17:29:57,593 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 17:29:57,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:29:57 BoogieIcfgContainer [2018-09-15 17:29:57,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 17:29:57,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 17:29:57,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 17:29:57,599 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 17:29:57,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 05:29:52" (1/3) ... [2018-09-15 17:29:57,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66310b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:29:57, skipping insertion in model container [2018-09-15 17:29:57,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:29:53" (2/3) ... [2018-09-15 17:29:57,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66310b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:29:57, skipping insertion in model container [2018-09-15 17:29:57,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:29:57" (3/3) ... [2018-09-15 17:29:57,604 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label42_true-unreach-call_false-termination.c [2018-09-15 17:29:57,613 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 17:29:57,623 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 17:29:57,679 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 17:29:57,680 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 17:29:57,680 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 17:29:57,680 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 17:29:57,680 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 17:29:57,680 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 17:29:57,681 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 17:29:57,681 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 17:29:57,681 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 17:29:57,709 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-09-15 17:29:57,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-09-15 17:29:57,727 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:29:57,731 INFO L376 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] [2018-09-15 17:29:57,733 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:29:57,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1053299728, now seen corresponding path program 1 times [2018-09-15 17:29:57,743 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:29:57,744 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 123 with the following transitions: [2018-09-15 17:29:57,748 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [613], [615], [761], [765], [771], [775], [782], [783], [784], [786] [2018-09-15 17:29:57,840 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:29:57,841 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:30:17,925 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:30:17,927 INFO L272 AbstractInterpreter]: Visited 67 different actions 67 times. Never merged. Never widened. Never found a fixpoint. Largest state had 41 variables. [2018-09-15 17:30:17,940 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:30:20,216 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 79.62% of their original sizes. [2018-09-15 17:30:20,217 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:30:21,574 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:30:21,576 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:30:21,576 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 17:30:21,577 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:30:21,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 17:30:21,592 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 17:30:21,593 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-09-15 17:30:21,596 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 12 states. [2018-09-15 17:30:26,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:30:26,434 INFO L93 Difference]: Finished difference Result 475 states and 794 transitions. [2018-09-15 17:30:26,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-15 17:30:26,436 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 122 [2018-09-15 17:30:26,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:30:26,452 INFO L225 Difference]: With dead ends: 475 [2018-09-15 17:30:26,452 INFO L226 Difference]: Without dead ends: 265 [2018-09-15 17:30:26,459 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 127 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-09-15 17:30:26,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-09-15 17:30:26,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2018-09-15 17:30:26,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-09-15 17:30:26,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 397 transitions. [2018-09-15 17:30:26,539 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 397 transitions. Word has length 122 [2018-09-15 17:30:26,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:30:26,540 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 397 transitions. [2018-09-15 17:30:26,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 17:30:26,540 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 397 transitions. [2018-09-15 17:30:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-15 17:30:26,554 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:30:26,556 INFO L376 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:30:26,557 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:30:26,557 INFO L82 PathProgramCache]: Analyzing trace with hash -213484749, now seen corresponding path program 1 times [2018-09-15 17:30:26,557 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:30:26,558 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 132 with the following transitions: [2018-09-15 17:30:26,558 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [613], [615], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-15 17:30:26,570 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:30:26,570 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:31:48,745 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:31:48,745 INFO L272 AbstractInterpreter]: Visited 77 different actions 142 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-15 17:31:48,783 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:31:53,949 INFO L232 lantSequenceWeakener]: Weakened 81 states. On average, predicates are now at 79.75% of their original sizes. [2018-09-15 17:31:53,949 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:31:57,874 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:31:57,875 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:31:57,875 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-09-15 17:31:57,875 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:31:57,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-15 17:31:57,877 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-15 17:31:57,878 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2018-09-15 17:31:57,878 INFO L87 Difference]: Start difference. First operand 265 states and 397 transitions. Second operand 21 states. [2018-09-15 17:32:10,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:32:10,288 INFO L93 Difference]: Finished difference Result 540 states and 863 transitions. [2018-09-15 17:32:10,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-09-15 17:32:10,290 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 131 [2018-09-15 17:32:10,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:32:10,294 INFO L225 Difference]: With dead ends: 540 [2018-09-15 17:32:10,294 INFO L226 Difference]: Without dead ends: 342 [2018-09-15 17:32:10,299 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=522, Invalid=1548, Unknown=0, NotChecked=0, Total=2070 [2018-09-15 17:32:10,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2018-09-15 17:32:10,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 337. [2018-09-15 17:32:10,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-09-15 17:32:10,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 482 transitions. [2018-09-15 17:32:10,335 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 482 transitions. Word has length 131 [2018-09-15 17:32:10,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:32:10,336 INFO L480 AbstractCegarLoop]: Abstraction has 337 states and 482 transitions. [2018-09-15 17:32:10,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-15 17:32:10,336 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 482 transitions. [2018-09-15 17:32:10,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-15 17:32:10,339 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:32:10,340 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:32:10,340 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:32:10,340 INFO L82 PathProgramCache]: Analyzing trace with hash -214566269, now seen corresponding path program 1 times [2018-09-15 17:32:10,341 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:32:10,341 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-09-15 17:32:10,341 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [613], [615], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-15 17:32:10,347 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:32:10,347 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:34:07,477 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:34:07,478 INFO L272 AbstractInterpreter]: Visited 125 different actions 189 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-15 17:34:07,486 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:34:14,411 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 80.68% of their original sizes. [2018-09-15 17:34:14,412 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:34:15,538 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:34:15,538 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:34:15,539 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 17:34:15,539 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:34:15,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 17:34:15,540 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 17:34:15,540 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2018-09-15 17:34:15,540 INFO L87 Difference]: Start difference. First operand 337 states and 482 transitions. Second operand 15 states. Received shutdown request... [2018-09-15 17:34:26,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-15 17:34:26,700 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 17:34:26,707 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 17:34:26,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 05:34:26 BoogieIcfgContainer [2018-09-15 17:34:26,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 17:34:26,708 INFO L168 Benchmark]: Toolchain (without parser) took 273907.10 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -633.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-15 17:34:26,711 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 17:34:26,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-15 17:34:26,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 17:34:26,713 INFO L168 Benchmark]: Boogie Preprocessor took 213.40 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -822.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2018-09-15 17:34:26,715 INFO L168 Benchmark]: RCFGBuilder took 3657.29 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.8 MB). Peak memory consumption was 108.8 MB. Max. memory is 7.1 GB. [2018-09-15 17:34:26,716 INFO L168 Benchmark]: TraceAbstraction took 269112.36 ms. Allocated memory was 2.2 GB in the beginning and 3.4 GB in the end (delta: 1.2 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 27.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-15 17:34:26,721 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 119.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 213.40 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -822.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3657.29 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.8 MB). Peak memory consumption was 108.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 269112.36 ms. Allocated memory was 2.2 GB in the beginning and 3.4 GB in the end (delta: 1.2 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 27.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 521]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 521). Cancelled while BasicCegarLoop was constructing difference of abstraction (337states) and FLOYD_HOARE automaton (currently 25 states, 15 states before enhancement), while ReachableStatesComputation was computing reachable states (710 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 269.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 28.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 700 SDtfs, 1489 SDslu, 902 SDs, 0 SdLazy, 4233 SolverSat, 383 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.5s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 431 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=337occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 219.5s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9945859193524974 AbsIntWeakeningRatio, 0.2109375 AbsIntAvgWeakeningVarsNumRemoved, 618.4036458333334 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label42_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_17-34-26-736.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label42_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_17-34-26-736.csv Completed graceful shutdown