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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label40_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:38:46,721 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:38:46,725 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:38:46,743 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:38:46,743 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:38:46,745 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:38:46,746 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:38:46,749 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:38:46,752 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:38:46,753 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:38:46,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:38:46,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:38:46,756 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:38:46,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:38:46,758 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:38:46,759 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:38:46,760 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:38:46,762 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:38:46,763 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:38:46,765 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:38:46,766 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:38:46,768 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:38:46,770 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 01:38:46,783 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 01:38:46,813 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:38:46,813 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:38:46,815 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:38:46,815 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:38:46,815 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:38:46,815 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:38:46,816 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:38:46,816 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:38:46,816 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:38:46,816 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:38:46,817 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:38:46,817 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:38:46,818 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:38:46,818 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:38:46,818 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:38:46,818 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:38:46,819 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:38:46,819 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:38:46,819 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:38:46,819 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:38:46,821 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:38:46,821 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:38:46,821 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:38:46,821 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:38:46,822 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:38:46,822 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:38:46,822 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:38:46,822 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:38:46,823 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:38:46,823 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:38:46,823 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:38:46,823 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:38:46,823 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:38:46,824 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:38:46,891 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:38:46,905 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:38:46,912 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:38:46,914 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:38:46,915 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:38:46,916 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label40_true-unreach-call_false-termination.c [2018-09-19 01:38:47,294 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7091ed3fc/38a190812c3a48f2bac84b761adc27da/FLAG7b3b04918 [2018-09-19 01:38:47,563 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:38:47,564 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label40_true-unreach-call_false-termination.c [2018-09-19 01:38:47,577 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7091ed3fc/38a190812c3a48f2bac84b761adc27da/FLAG7b3b04918 [2018-09-19 01:38:47,595 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7091ed3fc/38a190812c3a48f2bac84b761adc27da [2018-09-19 01:38:47,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:38:47,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:38:47,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:38:47,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:38:47,619 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:38:47,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:38:47" (1/1) ... [2018-09-19 01:38:47,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a5df79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:47, skipping insertion in model container [2018-09-19 01:38:47,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:38:47" (1/1) ... [2018-09-19 01:38:47,637 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:38:48,136 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:38:48,160 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:38:48,293 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:38:48,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48 WrapperNode [2018-09-19 01:38:48,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:38:48,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:38:48,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:38:48,340 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:38:48,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48" (1/1) ... [2018-09-19 01:38:48,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48" (1/1) ... [2018-09-19 01:38:48,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:38:48,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:38:48,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:38:48,454 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:38:48,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48" (1/1) ... [2018-09-19 01:38:48,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48" (1/1) ... [2018-09-19 01:38:48,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48" (1/1) ... [2018-09-19 01:38:48,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48" (1/1) ... [2018-09-19 01:38:48,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48" (1/1) ... [2018-09-19 01:38:48,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48" (1/1) ... [2018-09-19 01:38:48,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48" (1/1) ... [2018-09-19 01:38:48,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:38:48,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:38:48,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:38:48,747 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:38:48,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48" (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 01:38:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:38:48,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:38:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 01:38:48,834 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 01:38:48,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:38:48,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:38:48,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:38:48,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:38:52,643 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:38:52,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:38:52 BoogieIcfgContainer [2018-09-19 01:38:52,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:38:52,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:38:52,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:38:52,655 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:38:52,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:38:47" (1/3) ... [2018-09-19 01:38:52,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189d2a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:38:52, skipping insertion in model container [2018-09-19 01:38:52,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:38:48" (2/3) ... [2018-09-19 01:38:52,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189d2a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:38:52, skipping insertion in model container [2018-09-19 01:38:52,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:38:52" (3/3) ... [2018-09-19 01:38:52,660 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label40_true-unreach-call_false-termination.c [2018-09-19 01:38:52,674 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:38:52,687 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:38:52,756 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:38:52,758 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:38:52,758 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:38:52,758 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:38:52,758 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:38:52,759 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:38:52,759 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:38:52,759 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:38:52,759 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:38:52,788 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-09-19 01:38:52,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-09-19 01:38:52,806 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:38:52,807 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] [2018-09-19 01:38:52,809 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:38:52,817 INFO L82 PathProgramCache]: Analyzing trace with hash 861402336, now seen corresponding path program 1 times [2018-09-19 01:38:52,820 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:38:52,821 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 95 with the following transitions: [2018-09-19 01:38:52,825 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], [389], [391], [761], [765], [771], [775], [782], [783], [784], [786] [2018-09-19 01:38:52,943 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:38:52,944 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:39:13,738 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:39:13,740 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 01:39:13,757 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:39:16,135 INFO L232 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 79.62% of their original sizes. [2018-09-19 01:39:16,136 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:39:17,345 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:39:17,346 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:39:17,347 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 01:39:17,347 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:39:17,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 01:39:17,360 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 01:39:17,361 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-09-19 01:39:17,368 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 12 states. [2018-09-19 01:39:23,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:39:23,576 INFO L93 Difference]: Finished difference Result 475 states and 794 transitions. [2018-09-19 01:39:23,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 01:39:23,578 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2018-09-19 01:39:23,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:39:23,594 INFO L225 Difference]: With dead ends: 475 [2018-09-19 01:39:23,595 INFO L226 Difference]: Without dead ends: 265 [2018-09-19 01:39:23,602 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 99 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-09-19 01:39:23,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-09-19 01:39:23,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2018-09-19 01:39:23,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-09-19 01:39:23,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 397 transitions. [2018-09-19 01:39:23,675 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 397 transitions. Word has length 94 [2018-09-19 01:39:23,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:39:23,676 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 397 transitions. [2018-09-19 01:39:23,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 01:39:23,676 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 397 transitions. [2018-09-19 01:39:23,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-09-19 01:39:23,682 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:39:23,683 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] [2018-09-19 01:39:23,683 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:39:23,684 INFO L82 PathProgramCache]: Analyzing trace with hash -440443261, now seen corresponding path program 1 times [2018-09-19 01:39:23,684 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:39:23,684 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 104 with the following transitions: [2018-09-19 01:39:23,685 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], [389], [391], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:39:23,695 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:39:23,696 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:40:04,698 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:40:04,698 INFO L272 AbstractInterpreter]: Visited 97 different actions 162 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 01:40:04,710 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:40:07,196 INFO L232 lantSequenceWeakener]: Weakened 101 states. On average, predicates are now at 80.2% of their original sizes. [2018-09-19 01:40:07,197 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:40:08,454 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:40:08,455 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:40:08,455 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:40:08,455 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:40:08,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:40:08,457 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:40:08,457 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:40:08,457 INFO L87 Difference]: Start difference. First operand 265 states and 397 transitions. Second operand 14 states. [2018-09-19 01:40:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:40:16,616 INFO L93 Difference]: Finished difference Result 608 states and 996 transitions. [2018-09-19 01:40:16,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 01:40:16,618 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 103 [2018-09-19 01:40:16,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:40:16,625 INFO L225 Difference]: With dead ends: 608 [2018-09-19 01:40:16,625 INFO L226 Difference]: Without dead ends: 410 [2018-09-19 01:40:16,633 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 117 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2018-09-19 01:40:16,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-09-19 01:40:16,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 403. [2018-09-19 01:40:16,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2018-09-19 01:40:16,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 549 transitions. [2018-09-19 01:40:16,674 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 549 transitions. Word has length 103 [2018-09-19 01:40:16,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:40:16,675 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 549 transitions. [2018-09-19 01:40:16,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:40:16,675 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 549 transitions. [2018-09-19 01:40:16,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-09-19 01:40:16,680 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:40:16,681 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] [2018-09-19 01:40:16,681 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:40:16,682 INFO L82 PathProgramCache]: Analyzing trace with hash -2064648749, now seen corresponding path program 1 times [2018-09-19 01:40:16,682 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:40:16,682 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2018-09-19 01:40:16,682 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], [389], [391], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:40:16,688 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:40:16,689 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:40:55,372 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:40:55,372 INFO L272 AbstractInterpreter]: Visited 97 different actions 161 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 01:40:55,379 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:40:57,596 INFO L232 lantSequenceWeakener]: Weakened 104 states. On average, predicates are now at 80.19% of their original sizes. [2018-09-19 01:40:57,597 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:40:59,097 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:40:59,098 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:40:59,099 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 01:40:59,099 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:40:59,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 01:40:59,100 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 01:40:59,100 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 01:40:59,101 INFO L87 Difference]: Start difference. First operand 403 states and 549 transitions. Second operand 12 states. [2018-09-19 01:41:08,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:41:08,688 INFO L93 Difference]: Finished difference Result 788 states and 1227 transitions. [2018-09-19 01:41:08,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 01:41:08,691 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 106 [2018-09-19 01:41:08,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:41:08,697 INFO L225 Difference]: With dead ends: 788 [2018-09-19 01:41:08,697 INFO L226 Difference]: Without dead ends: 590 [2018-09-19 01:41:08,699 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 117 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2018-09-19 01:41:08,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2018-09-19 01:41:08,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 585. [2018-09-19 01:41:08,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2018-09-19 01:41:08,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 745 transitions. [2018-09-19 01:41:08,733 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 745 transitions. Word has length 106 [2018-09-19 01:41:08,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:41:08,734 INFO L480 AbstractCegarLoop]: Abstraction has 585 states and 745 transitions. [2018-09-19 01:41:08,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 01:41:08,735 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 745 transitions. [2018-09-19 01:41:08,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-09-19 01:41:08,737 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:41:08,738 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] [2018-09-19 01:41:08,738 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:41:08,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1059209488, now seen corresponding path program 1 times [2018-09-19 01:41:08,739 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:41:08,739 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-09-19 01:41:08,739 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], [389], [391], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:41:08,744 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:41:08,745 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:42:13,539 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:42:13,540 INFO L272 AbstractInterpreter]: Visited 98 different actions 263 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 01:42:13,549 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:42:15,690 INFO L232 lantSequenceWeakener]: Weakened 113 states. On average, predicates are now at 80.22% of their original sizes. [2018-09-19 01:42:15,691 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:42:16,109 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:42:16,110 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:42:16,110 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 01:42:16,110 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:42:16,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 01:42:16,111 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 01:42:16,111 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 01:42:16,112 INFO L87 Difference]: Start difference. First operand 585 states and 745 transitions. Second operand 10 states. [2018-09-19 01:42:24,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:42:24,379 INFO L93 Difference]: Finished difference Result 1157 states and 1589 transitions. [2018-09-19 01:42:24,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 01:42:24,380 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 115 [2018-09-19 01:42:24,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:42:24,387 INFO L225 Difference]: With dead ends: 1157 [2018-09-19 01:42:24,387 INFO L226 Difference]: Without dead ends: 777 [2018-09-19 01:42:24,389 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 122 GetRequests, 106 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 01:42:24,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2018-09-19 01:42:24,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 766. [2018-09-19 01:42:24,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2018-09-19 01:42:24,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 946 transitions. [2018-09-19 01:42:24,427 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 946 transitions. Word has length 115 [2018-09-19 01:42:24,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:42:24,428 INFO L480 AbstractCegarLoop]: Abstraction has 766 states and 946 transitions. [2018-09-19 01:42:24,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 01:42:24,428 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 946 transitions. [2018-09-19 01:42:24,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-09-19 01:42:24,431 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:42:24,432 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] [2018-09-19 01:42:24,432 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:42:24,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1602880745, now seen corresponding path program 1 times [2018-09-19 01:42:24,432 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:42:24,433 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-09-19 01:42:24,433 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], [389], [391], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-09-19 01:42:24,438 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:42:24,438 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:43:03,486 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:43:03,487 INFO L272 AbstractInterpreter]: Visited 97 different actions 162 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 01:43:03,495 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:43:06,167 INFO L232 lantSequenceWeakener]: Weakened 134 states. On average, predicates are now at 80.15% of their original sizes. [2018-09-19 01:43:06,167 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:43:07,901 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:43:07,901 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:43:07,901 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-19 01:43:07,902 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:43:07,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-19 01:43:07,902 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-19 01:43:07,903 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2018-09-19 01:43:07,903 INFO L87 Difference]: Start difference. First operand 766 states and 946 transitions. Second operand 19 states. Received shutdown request... [2018-09-19 01:43:12,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-19 01:43:12,694 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 01:43:12,701 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 01:43:12,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:43:12 BoogieIcfgContainer [2018-09-19 01:43:12,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:43:12,703 INFO L168 Benchmark]: Toolchain (without parser) took 265094.85 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 768.9 MB. Max. memory is 7.1 GB. [2018-09-19 01:43:12,706 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. [2018-09-19 01:43:12,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.05 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 01:43:12,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.01 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 01:43:12,710 INFO L168 Benchmark]: Boogie Preprocessor took 292.80 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 735.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -818.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-19 01:43:12,711 INFO L168 Benchmark]: RCFGBuilder took 3899.00 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: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 7.1 GB. [2018-09-19 01:43:12,711 INFO L168 Benchmark]: TraceAbstraction took 260054.74 ms. Allocated memory was 2.2 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -986.3 MB). Peak memory consumption was 696.7 MB. Max. memory is 7.1 GB. [2018-09-19 01:43:12,720 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 727.05 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 114.01 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 292.80 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 735.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -818.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3899.00 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: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260054.74 ms. Allocated memory was 2.2 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.0 GB in the end (delta: -986.3 MB). Peak memory consumption was 696.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 437]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 437). Cancelled while BasicCegarLoop was constructing difference of abstraction (766states) and FLOYD_HOARE automaton (currently 23 states, 19 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 36 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 259.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 37.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 999 SDtfs, 2634 SDslu, 1483 SDs, 0 SdLazy, 7383 SolverSat, 729 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.7s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 608 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 9.5s 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, 204.5s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9932523815870485 AbsIntWeakeningRatio, 0.2641165755919854 AbsIntAvgWeakeningVarsNumRemoved, 2830.4116575591984 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_label40_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-43-12-751.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label40_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-43-12-751.csv Completed graceful shutdown