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/loop-lit/gj2007b_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 09:23:22,970 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 09:23:22,972 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 09:23:22,985 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 09:23:22,985 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 09:23:22,987 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 09:23:22,988 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 09:23:22,990 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 09:23:22,992 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 09:23:22,993 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 09:23:22,994 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 09:23:22,994 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 09:23:22,995 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 09:23:22,996 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 09:23:22,998 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 09:23:22,999 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 09:23:23,000 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 09:23:23,002 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 09:23:23,004 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 09:23:23,006 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 09:23:23,007 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 09:23:23,009 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 09:23:23,011 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 09:23:23,022 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 [2018-09-15 09:23:23,038 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 09:23:23,038 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 09:23:23,039 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 09:23:23,039 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 09:23:23,040 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 09:23:23,040 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 09:23:23,040 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 09:23:23,040 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 09:23:23,040 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 09:23:23,041 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 09:23:23,041 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 09:23:23,042 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 09:23:23,042 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 09:23:23,042 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 09:23:23,042 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 09:23:23,043 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 09:23:23,043 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 09:23:23,043 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 09:23:23,043 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 09:23:23,043 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 09:23:23,044 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 09:23:23,044 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 09:23:23,044 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 09:23:23,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 09:23:23,044 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 09:23:23,045 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 09:23:23,045 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 09:23:23,045 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 09:23:23,045 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 09:23:23,046 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 09:23:23,046 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 09:23:23,046 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 09:23:23,046 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 09:23:23,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 09:23:23,129 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 09:23:23,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 09:23:23,138 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 09:23:23,138 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 09:23:23,139 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gj2007b_true-unreach-call_true-termination.c.i [2018-09-15 09:23:23,539 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483675f79/a6a511bc154b4c84a8146381bd63a1bb/FLAG7724c1fea [2018-09-15 09:23:23,695 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 09:23:23,696 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007b_true-unreach-call_true-termination.c.i [2018-09-15 09:23:23,703 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483675f79/a6a511bc154b4c84a8146381bd63a1bb/FLAG7724c1fea [2018-09-15 09:23:23,724 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483675f79/a6a511bc154b4c84a8146381bd63a1bb [2018-09-15 09:23:23,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 09:23:23,738 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 09:23:23,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 09:23:23,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 09:23:23,746 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 09:23:23,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:23:23" (1/1) ... [2018-09-15 09:23:23,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d56e01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:23, skipping insertion in model container [2018-09-15 09:23:23,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:23:23" (1/1) ... [2018-09-15 09:23:23,763 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 09:23:23,972 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:23:23,987 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 09:23:23,992 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:23:24,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24 WrapperNode [2018-09-15 09:23:24,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 09:23:24,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 09:23:24,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 09:23:24,006 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 09:23:24,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24" (1/1) ... [2018-09-15 09:23:24,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24" (1/1) ... [2018-09-15 09:23:24,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 09:23:24,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 09:23:24,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 09:23:24,028 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 09:23:24,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24" (1/1) ... [2018-09-15 09:23:24,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24" (1/1) ... [2018-09-15 09:23:24,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24" (1/1) ... [2018-09-15 09:23:24,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24" (1/1) ... [2018-09-15 09:23:24,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24" (1/1) ... [2018-09-15 09:23:24,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24" (1/1) ... [2018-09-15 09:23:24,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24" (1/1) ... [2018-09-15 09:23:24,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 09:23:24,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 09:23:24,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 09:23:24,047 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 09:23:24,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 09:23:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 09:23:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 09:23:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 09:23:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 09:23:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 09:23:24,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 09:23:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 09:23:24,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 09:23:24,424 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 09:23:24,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:23:24 BoogieIcfgContainer [2018-09-15 09:23:24,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 09:23:24,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 09:23:24,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 09:23:24,439 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 09:23:24,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:23:23" (1/3) ... [2018-09-15 09:23:24,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394e26de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:23:24, skipping insertion in model container [2018-09-15 09:23:24,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:24" (2/3) ... [2018-09-15 09:23:24,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394e26de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:23:24, skipping insertion in model container [2018-09-15 09:23:24,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:23:24" (3/3) ... [2018-09-15 09:23:24,453 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007b_true-unreach-call_true-termination.c.i [2018-09-15 09:23:24,475 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 09:23:24,489 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 09:23:24,550 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 09:23:24,551 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 09:23:24,551 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 09:23:24,551 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 09:23:24,552 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 09:23:24,552 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 09:23:24,552 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 09:23:24,552 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 09:23:24,552 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 09:23:24,571 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-15 09:23:24,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-15 09:23:24,578 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:24,579 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:24,580 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:24,586 INFO L82 PathProgramCache]: Analyzing trace with hash 425736256, now seen corresponding path program 1 times [2018-09-15 09:23:24,589 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:24,590 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-15 09:23:24,592 INFO L202 CegarAbsIntRunner]: [0], [4], [23], [29], [32], [34], [40], [41], [42], [44] [2018-09-15 09:23:24,647 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:24,647 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:24,727 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:24,729 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-15 09:23:24,761 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:24,816 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 33.33% of their original sizes. [2018-09-15 09:23:24,816 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:24,835 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:24,837 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:24,837 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 09:23:24,837 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:24,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 09:23:24,848 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 09:23:24,849 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 09:23:24,851 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-09-15 09:23:24,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:24,923 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2018-09-15 09:23:24,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 09:23:24,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-15 09:23:24,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:24,936 INFO L225 Difference]: With dead ends: 44 [2018-09-15 09:23:24,937 INFO L226 Difference]: Without dead ends: 23 [2018-09-15 09:23:24,941 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 09:23:24,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-15 09:23:24,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-09-15 09:23:24,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-15 09:23:24,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-09-15 09:23:24,988 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2018-09-15 09:23:24,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:24,989 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-09-15 09:23:24,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 09:23:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-09-15 09:23:24,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 09:23:24,990 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:24,990 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:24,991 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:24,992 INFO L82 PathProgramCache]: Analyzing trace with hash -145623935, now seen corresponding path program 1 times [2018-09-15 09:23:24,992 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:24,992 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 09:23:24,993 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [29], [32], [34], [40], [41], [42], [44] [2018-09-15 09:23:24,994 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:24,995 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:25,022 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:25,022 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-15 09:23:25,041 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:25,094 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-15 09:23:25,094 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:25,215 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:25,216 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:25,216 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 09:23:25,217 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:25,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 09:23:25,218 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 09:23:25,218 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-15 09:23:25,218 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 6 states. [2018-09-15 09:23:25,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:25,573 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2018-09-15 09:23:25,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 09:23:25,573 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-09-15 09:23:25,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:25,574 INFO L225 Difference]: With dead ends: 29 [2018-09-15 09:23:25,574 INFO L226 Difference]: Without dead ends: 21 [2018-09-15 09:23:25,577 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-15 09:23:25,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-09-15 09:23:25,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-09-15 09:23:25,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-15 09:23:25,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-09-15 09:23:25,585 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 11 [2018-09-15 09:23:25,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:25,585 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-09-15 09:23:25,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 09:23:25,585 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-09-15 09:23:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-15 09:23:25,586 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:25,586 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:25,586 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:25,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1093455445, now seen corresponding path program 1 times [2018-09-15 09:23:25,587 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:25,587 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-15 09:23:25,587 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [17], [21], [29], [32], [34], [40], [41], [42], [44] [2018-09-15 09:23:25,589 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:25,589 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:25,712 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:25,712 INFO L272 AbstractInterpreter]: Visited 13 different actions 77 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-09-15 09:23:25,722 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:25,755 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 35% of their original sizes. [2018-09-15 09:23:25,755 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:26,047 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:26,047 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:26,047 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-15 09:23:26,047 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:26,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-15 09:23:26,048 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-15 09:23:26,050 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-09-15 09:23:26,050 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 9 states. [2018-09-15 09:23:26,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:26,407 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-09-15 09:23:26,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-15 09:23:26,409 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-09-15 09:23:26,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:26,411 INFO L225 Difference]: With dead ends: 32 [2018-09-15 09:23:26,411 INFO L226 Difference]: Without dead ends: 30 [2018-09-15 09:23:26,412 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-09-15 09:23:26,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-09-15 09:23:26,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2018-09-15 09:23:26,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-09-15 09:23:26,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2018-09-15 09:23:26,420 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 15 [2018-09-15 09:23:26,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:26,420 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2018-09-15 09:23:26,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-15 09:23:26,420 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-09-15 09:23:26,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-15 09:23:26,421 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:26,421 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:26,422 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:26,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1902802071, now seen corresponding path program 1 times [2018-09-15 09:23:26,422 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:26,422 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-15 09:23:26,423 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [19], [21], [29], [32], [34], [40], [41], [42], [44] [2018-09-15 09:23:26,424 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:26,424 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:26,494 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:26,494 INFO L272 AbstractInterpreter]: Visited 13 different actions 69 times. Merged at 5 different actions 35 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-09-15 09:23:26,505 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:26,532 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-15 09:23:26,533 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:26,653 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:26,653 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:26,653 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-15 09:23:26,654 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:26,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-15 09:23:26,655 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-15 09:23:26,655 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-15 09:23:26,655 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 8 states. [2018-09-15 09:23:26,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:26,954 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-09-15 09:23:26,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-15 09:23:26,955 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-09-15 09:23:26,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:26,958 INFO L225 Difference]: With dead ends: 41 [2018-09-15 09:23:26,958 INFO L226 Difference]: Without dead ends: 33 [2018-09-15 09:23:26,959 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-15 09:23:26,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-09-15 09:23:26,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-09-15 09:23:26,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-09-15 09:23:26,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2018-09-15 09:23:26,968 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 15 [2018-09-15 09:23:26,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:26,968 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2018-09-15 09:23:26,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-15 09:23:26,969 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-09-15 09:23:26,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-15 09:23:26,970 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:26,970 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:26,970 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:26,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1642528819, now seen corresponding path program 1 times [2018-09-15 09:23:26,970 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:26,971 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-15 09:23:26,971 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [17], [21], [29], [32], [34], [37], [39], [40], [41], [42], [44], [45], [46] [2018-09-15 09:23:26,973 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:26,973 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:27,062 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 09:23:27,062 INFO L272 AbstractInterpreter]: Visited 18 different actions 155 times. Merged at 6 different actions 48 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-09-15 09:23:27,092 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 09:23:27,112 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 09:23:27,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:23:27 BoogieIcfgContainer [2018-09-15 09:23:27,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 09:23:27,114 INFO L168 Benchmark]: Toolchain (without parser) took 3377.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -678.1 MB). Peak memory consumption was 73.3 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:27,116 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-09-15 09:23:27,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.14 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. [2018-09-15 09:23:27,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.40 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 09:23:27,118 INFO L168 Benchmark]: Boogie Preprocessor took 18.49 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 09:23:27,119 INFO L168 Benchmark]: RCFGBuilder took 378.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -804.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:27,120 INFO L168 Benchmark]: TraceAbstraction took 2686.44 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: 115.6 MB). Peak memory consumption was 115.6 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:27,125 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 266.14 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 Procedure Inliner took 21.40 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. * Boogie Preprocessor took 18.49 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. * RCFGBuilder took 378.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -804.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2686.44 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: 115.6 MB). Peak memory consumption was 115.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L11] int x = 0; [L12] int m = 0; [L13] int n = __VERIFIER_nondet_int(); [L14] COND TRUE x < n [L15] COND TRUE __VERIFIER_nondet_int() [L16] m = x [L18] x = x + 1 [L14] COND FALSE !(x < n) [L20] CALL __VERIFIER_assert((m >= 0 || n <= 0)) [L4] COND FALSE, RET !(!(cond)) [L20] __VERIFIER_assert((m >= 0 || n <= 0)) [L21] CALL __VERIFIER_assert((m < n || n <= 0)) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. UNKNOWN Result, 2.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 69 SDtfs, 32 SDslu, 180 SDs, 0 SdLazy, 139 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 5 AbstIntIterations, 4 AbstIntStrong, 0.95 AbsIntWeakeningRatio, 0.44680851063829785 AbsIntAvgWeakeningVarsNumRemoved, 2.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 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: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gj2007b_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_09-23-27-138.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gj2007b_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_09-23-27-138.csv Received shutdown request...