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_label31_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:10:21,956 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:10:21,959 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:10:21,972 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:10:21,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:10:21,975 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:10:21,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:10:21,978 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:10:21,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:10:21,981 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:10:21,982 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:10:21,982 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:10:21,983 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:10:21,984 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:10:21,985 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:10:21,986 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:10:21,987 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:10:21,989 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:10:21,991 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:10:21,992 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:10:21,993 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:10:21,994 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:10:21,997 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 08:10:22,006 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 [2018-09-19 08:10:22,026 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:10:22,026 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:10:22,028 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:10:22,028 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:10:22,028 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:10:22,029 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:10:22,029 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:10:22,029 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:10:22,029 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:10:22,030 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:10:22,030 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:10:22,030 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:10:22,030 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:10:22,031 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:10:22,031 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:10:22,031 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:10:22,032 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:10:22,032 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:10:22,032 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:10:22,032 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:10:22,032 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:10:22,033 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:10:22,034 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:10:22,034 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:10:22,034 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:10:22,034 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:10:22,034 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:10:22,035 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:10:22,035 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:10:22,035 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:10:22,035 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:10:22,036 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:10:22,036 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:10:22,036 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:10:22,036 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:10:22,095 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:10:22,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:10:22,115 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:10:22,118 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:10:22,118 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:10:22,119 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label31_true-unreach-call_false-termination.c [2018-09-19 08:10:22,500 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/650375e46/d3b4a988fc88479b8c2d16d5c7a8baec/FLAG9260e7074 [2018-09-19 08:10:22,847 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:10:22,848 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label31_true-unreach-call_false-termination.c [2018-09-19 08:10:22,863 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/650375e46/d3b4a988fc88479b8c2d16d5c7a8baec/FLAG9260e7074 [2018-09-19 08:10:22,897 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/650375e46/d3b4a988fc88479b8c2d16d5c7a8baec [2018-09-19 08:10:22,910 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:10:22,915 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:10:22,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:10:22,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:10:22,927 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:10:22,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:10:22" (1/1) ... [2018-09-19 08:10:22,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15dc71fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:22, skipping insertion in model container [2018-09-19 08:10:22,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:10:22" (1/1) ... [2018-09-19 08:10:22,944 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:10:23,466 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:10:23,483 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:10:23,635 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:10:23,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23 WrapperNode [2018-09-19 08:10:23,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:10:23,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:10:23,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:10:23,681 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:10:23,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23" (1/1) ... [2018-09-19 08:10:23,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23" (1/1) ... [2018-09-19 08:10:23,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:10:23,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:10:23,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:10:23,790 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:10:23,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23" (1/1) ... [2018-09-19 08:10:23,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23" (1/1) ... [2018-09-19 08:10:23,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23" (1/1) ... [2018-09-19 08:10:23,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23" (1/1) ... [2018-09-19 08:10:24,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23" (1/1) ... [2018-09-19 08:10:24,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23" (1/1) ... [2018-09-19 08:10:24,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23" (1/1) ... [2018-09-19 08:10:24,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:10:24,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:10:24,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:10:24,097 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:10:24,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23" (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 [2018-09-19 08:10:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:10:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:10:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 08:10:24,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 08:10:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:10:24,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:10:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:10:24,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:10:27,475 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:10:27,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:10:27 BoogieIcfgContainer [2018-09-19 08:10:27,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:10:27,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:10:27,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:10:27,487 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:10:27,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:10:22" (1/3) ... [2018-09-19 08:10:27,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5cbabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:10:27, skipping insertion in model container [2018-09-19 08:10:27,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:10:23" (2/3) ... [2018-09-19 08:10:27,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5cbabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:10:27, skipping insertion in model container [2018-09-19 08:10:27,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:10:27" (3/3) ... [2018-09-19 08:10:27,491 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label31_true-unreach-call_false-termination.c [2018-09-19 08:10:27,502 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:10:27,512 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:10:27,570 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:10:27,571 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:10:27,572 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:10:27,572 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:10:27,572 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:10:27,572 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:10:27,572 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:10:27,572 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:10:27,573 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:10:27,599 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-09-19 08:10:27,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-09-19 08:10:27,613 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:10:27,615 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] [2018-09-19 08:10:27,616 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:10:27,624 INFO L82 PathProgramCache]: Analyzing trace with hash 598673213, now seen corresponding path program 1 times [2018-09-19 08:10:27,627 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:10:27,628 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 100 with the following transitions: [2018-09-19 08:10:27,632 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], [429], [431], [761], [765], [771], [775], [782], [783], [784], [786] [2018-09-19 08:10:27,719 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:10:27,720 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:10:46,458 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:10:46,460 INFO L272 AbstractInterpreter]: Visited 67 different actions 67 times. Never merged. Never widened. Never found a fixpoint. Largest state had 41 variables. [2018-09-19 08:10:46,498 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:10:48,854 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 79.62% of their original sizes. [2018-09-19 08:10:48,855 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:10:50,598 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:10:50,601 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:10:50,601 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 08:10:50,601 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:10:50,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 08:10:50,616 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 08:10:50,617 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-09-19 08:10:50,620 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 12 states. [2018-09-19 08:10:58,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:10:58,004 INFO L93 Difference]: Finished difference Result 475 states and 794 transitions. [2018-09-19 08:10:58,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 08:10:58,006 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2018-09-19 08:10:58,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:10:58,023 INFO L225 Difference]: With dead ends: 475 [2018-09-19 08:10:58,023 INFO L226 Difference]: Without dead ends: 265 [2018-09-19 08:10:58,031 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 104 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-09-19 08:10:58,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-09-19 08:10:58,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2018-09-19 08:10:58,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-09-19 08:10:58,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 397 transitions. [2018-09-19 08:10:58,104 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 397 transitions. Word has length 99 [2018-09-19 08:10:58,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:10:58,105 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 397 transitions. [2018-09-19 08:10:58,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 08:10:58,105 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 397 transitions. [2018-09-19 08:10:58,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-09-19 08:10:58,112 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:10:58,114 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] [2018-09-19 08:10:58,115 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:10:58,115 INFO L82 PathProgramCache]: Analyzing trace with hash 480717690, now seen corresponding path program 1 times [2018-09-19 08:10:58,116 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:10:58,116 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2018-09-19 08:10:58,117 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], [429], [431], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 08:10:58,123 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:10:58,123 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:11:34,056 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:11:34,057 INFO L272 AbstractInterpreter]: Visited 102 different actions 167 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-19 08:11:34,064 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:11:36,614 INFO L232 lantSequenceWeakener]: Weakened 106 states. On average, predicates are now at 80.3% of their original sizes. [2018-09-19 08:11:36,615 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:11:37,596 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:11:37,597 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:11:37,597 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:11:37,597 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:11:37,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:11:37,599 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:11:37,599 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:11:37,599 INFO L87 Difference]: Start difference. First operand 265 states and 397 transitions. Second operand 14 states. [2018-09-19 08:11:48,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:11:48,628 INFO L93 Difference]: Finished difference Result 608 states and 996 transitions. [2018-09-19 08:11:48,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 08:11:48,632 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 108 [2018-09-19 08:11:48,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:11:48,639 INFO L225 Difference]: With dead ends: 608 [2018-09-19 08:11:48,639 INFO L226 Difference]: Without dead ends: 410 [2018-09-19 08:11:48,643 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 122 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2018-09-19 08:11:48,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-09-19 08:11:48,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 403. [2018-09-19 08:11:48,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2018-09-19 08:11:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 549 transitions. [2018-09-19 08:11:48,683 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 549 transitions. Word has length 108 [2018-09-19 08:11:48,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:11:48,685 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 549 transitions. [2018-09-19 08:11:48,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:11:48,685 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 549 transitions. [2018-09-19 08:11:48,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-09-19 08:11:48,689 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:11:48,689 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] [2018-09-19 08:11:48,690 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:11:48,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1346329046, now seen corresponding path program 1 times [2018-09-19 08:11:48,690 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:11:48,691 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 112 with the following transitions: [2018-09-19 08:11:48,691 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], [429], [431], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 08:11:48,699 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:11:48,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:12:29,201 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:12:29,201 INFO L272 AbstractInterpreter]: Visited 102 different actions 166 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-19 08:12:29,206 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:12:31,827 INFO L232 lantSequenceWeakener]: Weakened 109 states. On average, predicates are now at 80.3% of their original sizes. [2018-09-19 08:12:31,828 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:12:33,262 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:12:33,262 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:12:33,262 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 08:12:33,263 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:12:33,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 08:12:33,263 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 08:12:33,264 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 08:12:33,264 INFO L87 Difference]: Start difference. First operand 403 states and 549 transitions. Second operand 12 states. [2018-09-19 08:12:43,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:12:43,830 INFO L93 Difference]: Finished difference Result 788 states and 1227 transitions. [2018-09-19 08:12:43,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 08:12:43,832 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2018-09-19 08:12:43,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:12:43,838 INFO L225 Difference]: With dead ends: 788 [2018-09-19 08:12:43,838 INFO L226 Difference]: Without dead ends: 590 [2018-09-19 08:12:43,840 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2018-09-19 08:12:43,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2018-09-19 08:12:43,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 585. [2018-09-19 08:12:43,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2018-09-19 08:12:43,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 745 transitions. [2018-09-19 08:12:43,884 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 745 transitions. Word has length 111 [2018-09-19 08:12:43,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:12:43,885 INFO L480 AbstractCegarLoop]: Abstraction has 585 states and 745 transitions. [2018-09-19 08:12:43,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 08:12:43,885 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 745 transitions. [2018-09-19 08:12:43,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-09-19 08:12:43,888 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:12:43,889 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-09-19 08:12:43,889 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:12:43,890 INFO L82 PathProgramCache]: Analyzing trace with hash 260376365, now seen corresponding path program 1 times [2018-09-19 08:12:43,890 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:12:43,890 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 121 with the following transitions: [2018-09-19 08:12:43,891 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [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], [429], [431], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 08:12:43,896 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:12:43,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:13:46,605 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:13:46,605 INFO L272 AbstractInterpreter]: Visited 103 different actions 273 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 42 variables. [2018-09-19 08:13:46,639 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:13:48,574 INFO L232 lantSequenceWeakener]: Weakened 118 states. On average, predicates are now at 80.32% of their original sizes. [2018-09-19 08:13:48,575 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:13:48,995 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:13:48,996 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:13:48,996 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 08:13:48,996 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:13:48,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 08:13:48,997 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 08:13:48,997 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 08:13:48,998 INFO L87 Difference]: Start difference. First operand 585 states and 745 transitions. Second operand 10 states. [2018-09-19 08:13:58,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:13:58,260 INFO L93 Difference]: Finished difference Result 1157 states and 1589 transitions. [2018-09-19 08:13:58,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 08:13:58,261 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 120 [2018-09-19 08:13:58,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:13:58,267 INFO L225 Difference]: With dead ends: 1157 [2018-09-19 08:13:58,267 INFO L226 Difference]: Without dead ends: 777 [2018-09-19 08:13:58,269 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 127 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 08:13:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2018-09-19 08:13:58,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 766. [2018-09-19 08:13:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2018-09-19 08:13:58,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 946 transitions. [2018-09-19 08:13:58,308 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 946 transitions. Word has length 120 [2018-09-19 08:13:58,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:13:58,309 INFO L480 AbstractCegarLoop]: Abstraction has 766 states and 946 transitions. [2018-09-19 08:13:58,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 08:13:58,309 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 946 transitions. [2018-09-19 08:13:58,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-09-19 08:13:58,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:13:58,312 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 08:13:58,313 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:13:58,313 INFO L82 PathProgramCache]: Analyzing trace with hash -734049434, now seen corresponding path program 1 times [2018-09-19 08:13:58,313 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:13:58,314 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-09-19 08:13:58,314 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], [137], [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], [429], [431], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 08:13:58,318 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:13:58,318 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:14:39,493 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:14:39,494 INFO L272 AbstractInterpreter]: Visited 102 different actions 167 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-19 08:14:39,505 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:14:41,909 INFO L232 lantSequenceWeakener]: Weakened 139 states. On average, predicates are now at 80.23% of their original sizes. [2018-09-19 08:14:41,909 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:14:43,615 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:14:43,616 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:14:43,616 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-19 08:14:43,616 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:14:43,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-19 08:14:43,617 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-19 08:14:43,617 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2018-09-19 08:14:43,618 INFO L87 Difference]: Start difference. First operand 766 states and 946 transitions. Second operand 19 states. Received shutdown request... [2018-09-19 08:14:50,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 08:14:50,130 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 08:14:50,137 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 08:14:50,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:14:50 BoogieIcfgContainer [2018-09-19 08:14:50,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:14:50,139 INFO L168 Benchmark]: Toolchain (without parser) took 267226.62 ms. Allocated memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: 1.7 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -649.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-19 08:14:50,141 INFO L168 Benchmark]: CDTParser took 1.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:14:50,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.50 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. [2018-09-19 08:14:50,142 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.14 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 08:14:50,143 INFO L168 Benchmark]: Boogie Preprocessor took 305.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -826.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-19 08:14:50,144 INFO L168 Benchmark]: RCFGBuilder took 3382.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 99.0 MB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. [2018-09-19 08:14:50,145 INFO L168 Benchmark]: TraceAbstraction took 262656.32 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 956.3 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 25.0 MB). Peak memory consumption was 981.3 MB. Max. memory is 7.1 GB. [2018-09-19 08:14:50,150 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.50 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 109.14 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 305.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -826.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3382.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 99.0 MB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 262656.32 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 956.3 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 25.0 MB). Peak memory consumption was 981.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 452]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 452). Cancelled while BasicCegarLoop was constructing difference of abstraction (766states) and FLOYD_HOARE automaton (currently 25 states, 19 states before enhancement), while ReachableStatesComputation was computing reachable states (690 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 262.5s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 44.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1024 SDtfs, 2579 SDslu, 1814 SDs, 0 SdLazy, 8836 SolverSat, 731 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 37.9s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 634 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=766occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 199.2s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9935462674064279 AbsIntWeakeningRatio, 0.25261324041811845 AbsIntAvgWeakeningVarsNumRemoved, 2787.876306620209 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 23 StatesRemovedByMinimization, 3 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_label31_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-14-50-166.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label31_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-14-50-166.csv Completed graceful shutdown