java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-lit/gj2007b_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:39,704 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:39,706 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:39,722 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:39,723 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:39,724 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:39,725 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:39,729 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:39,732 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:39,736 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:39,737 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:39,737 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:39,738 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:39,745 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:39,746 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:39,747 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:39,747 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:39,752 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:39,754 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:39,755 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:39,756 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:39,757 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:39,760 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 08:01:39,768 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 08:01:39,783 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:39,784 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:39,784 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:39,785 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:39,785 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:39,785 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:39,785 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:39,785 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:39,786 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:39,786 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:39,786 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:39,786 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:39,786 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:39,787 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:39,787 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:39,788 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:39,788 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:39,788 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:39,788 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:39,788 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:39,789 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:39,789 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:39,789 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:39,789 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:39,789 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:39,790 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:39,790 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:39,790 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:39,790 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:39,790 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:39,791 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:39,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:39,791 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:39,791 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:39,792 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:39,847 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:39,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:39,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:39,871 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:39,871 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:39,872 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gj2007b_true-unreach-call_true-termination.c.i [2018-09-19 08:01:40,231 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/457806aa9/73b2e113f64d431d9f82f565911278b0/FLAG0ace7059d [2018-09-19 08:01:40,357 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:40,358 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007b_true-unreach-call_true-termination.c.i [2018-09-19 08:01:40,364 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/457806aa9/73b2e113f64d431d9f82f565911278b0/FLAG0ace7059d [2018-09-19 08:01:40,379 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/457806aa9/73b2e113f64d431d9f82f565911278b0 [2018-09-19 08:01:40,389 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:40,393 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:40,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:40,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:40,404 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:40,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:40" (1/1) ... [2018-09-19 08:01:40,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ba3203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40, skipping insertion in model container [2018-09-19 08:01:40,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:40" (1/1) ... [2018-09-19 08:01:40,421 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:40,693 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:40,713 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:40,717 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:40,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40 WrapperNode [2018-09-19 08:01:40,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:40,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:40,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:40,730 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:40,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40" (1/1) ... [2018-09-19 08:01:40,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40" (1/1) ... [2018-09-19 08:01:40,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:40,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:40,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:40,751 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:40,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40" (1/1) ... [2018-09-19 08:01:40,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40" (1/1) ... [2018-09-19 08:01:40,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40" (1/1) ... [2018-09-19 08:01:40,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40" (1/1) ... [2018-09-19 08:01:40,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40" (1/1) ... [2018-09-19 08:01:40,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40" (1/1) ... [2018-09-19 08:01:40,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40" (1/1) ... [2018-09-19 08:01:40,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:40,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:40,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:40,770 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:40,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:40,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:40,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:40,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:40,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:40,848 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:40,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:41,135 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:41,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:41 BoogieIcfgContainer [2018-09-19 08:01:41,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:41,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:41,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:41,142 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:41,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:40" (1/3) ... [2018-09-19 08:01:41,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6683a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:41, skipping insertion in model container [2018-09-19 08:01:41,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:40" (2/3) ... [2018-09-19 08:01:41,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6683a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:41, skipping insertion in model container [2018-09-19 08:01:41,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:41" (3/3) ... [2018-09-19 08:01:41,147 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007b_true-unreach-call_true-termination.c.i [2018-09-19 08:01:41,160 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:41,171 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:41,233 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:41,234 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:41,235 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:41,235 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:41,235 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:41,235 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:41,236 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:41,236 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:41,236 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-19 08:01:41,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-19 08:01:41,264 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:41,265 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:41,266 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:41,273 INFO L82 PathProgramCache]: Analyzing trace with hash 425736256, now seen corresponding path program 1 times [2018-09-19 08:01:41,276 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:41,277 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-19 08:01:41,279 INFO L202 CegarAbsIntRunner]: [0], [4], [23], [29], [32], [34], [40], [41], [42], [44] [2018-09-19 08:01:41,351 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:41,351 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:41,400 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:41,403 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-19 08:01:41,437 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:41,492 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 33.33% of their original sizes. [2018-09-19 08:01:41,493 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:41,509 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:41,511 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:41,511 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 08:01:41,512 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:41,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 08:01:41,522 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 08:01:41,523 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 08:01:41,525 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-09-19 08:01:41,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:41,586 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2018-09-19 08:01:41,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 08:01:41,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-19 08:01:41,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:41,599 INFO L225 Difference]: With dead ends: 44 [2018-09-19 08:01:41,600 INFO L226 Difference]: Without dead ends: 23 [2018-09-19 08:01:41,604 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 [2018-09-19 08:01:41,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-19 08:01:41,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-09-19 08:01:41,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-19 08:01:41,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-09-19 08:01:41,649 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2018-09-19 08:01:41,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:41,651 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-09-19 08:01:41,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 08:01:41,651 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-09-19 08:01:41,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 08:01:41,652 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:41,652 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:41,654 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:41,654 INFO L82 PathProgramCache]: Analyzing trace with hash -145623935, now seen corresponding path program 1 times [2018-09-19 08:01:41,654 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:41,655 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 08:01:41,655 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [29], [32], [34], [40], [41], [42], [44] [2018-09-19 08:01:41,657 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:41,658 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:41,676 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:41,677 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-19 08:01:41,692 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:41,713 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-19 08:01:41,714 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:41,856 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:41,857 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:41,857 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 08:01:41,857 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:41,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 08:01:41,858 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 08:01:41,859 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-19 08:01:41,859 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 6 states. [2018-09-19 08:01:42,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:42,239 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2018-09-19 08:01:42,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 08:01:42,240 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-09-19 08:01:42,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:42,241 INFO L225 Difference]: With dead ends: 29 [2018-09-19 08:01:42,241 INFO L226 Difference]: Without dead ends: 21 [2018-09-19 08:01:42,243 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 [2018-09-19 08:01:42,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-09-19 08:01:42,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-09-19 08:01:42,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-19 08:01:42,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-09-19 08:01:42,253 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 11 [2018-09-19 08:01:42,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:42,253 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-09-19 08:01:42,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 08:01:42,254 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-09-19 08:01:42,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-19 08:01:42,254 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:42,255 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:42,255 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:42,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1093455445, now seen corresponding path program 1 times [2018-09-19 08:01:42,255 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:42,256 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-19 08:01:42,256 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [17], [21], [29], [32], [34], [40], [41], [42], [44] [2018-09-19 08:01:42,258 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:42,258 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:42,305 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:42,306 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. [2018-09-19 08:01:42,344 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:42,366 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 35% of their original sizes. [2018-09-19 08:01:42,366 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:42,778 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:42,778 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:42,778 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 08:01:42,778 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:42,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 08:01:42,779 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 08:01:42,779 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-09-19 08:01:42,780 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 9 states. [2018-09-19 08:01:42,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:42,982 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-09-19 08:01:42,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-19 08:01:42,983 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-09-19 08:01:42,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:42,985 INFO L225 Difference]: With dead ends: 32 [2018-09-19 08:01:42,986 INFO L226 Difference]: Without dead ends: 30 [2018-09-19 08:01:42,986 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-09-19 08:01:42,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-09-19 08:01:42,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2018-09-19 08:01:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-09-19 08:01:42,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2018-09-19 08:01:42,995 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 15 [2018-09-19 08:01:42,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:42,996 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2018-09-19 08:01:42,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 08:01:42,996 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-09-19 08:01:42,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-19 08:01:42,997 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:42,997 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:42,997 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:42,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1902802071, now seen corresponding path program 1 times [2018-09-19 08:01:42,998 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:42,998 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-19 08:01:42,999 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [19], [21], [29], [32], [34], [40], [41], [42], [44] [2018-09-19 08:01:43,000 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:43,000 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:43,022 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:43,022 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. [2018-09-19 08:01:43,065 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:43,084 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-19 08:01:43,084 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:43,310 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:43,310 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:43,311 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 08:01:43,311 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:43,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 08:01:43,312 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 08:01:43,312 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-19 08:01:43,312 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 8 states. [2018-09-19 08:01:43,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:43,557 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-09-19 08:01:43,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 08:01:43,558 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-09-19 08:01:43,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:43,563 INFO L225 Difference]: With dead ends: 41 [2018-09-19 08:01:43,563 INFO L226 Difference]: Without dead ends: 33 [2018-09-19 08:01:43,564 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-19 08:01:43,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-09-19 08:01:43,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-09-19 08:01:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-09-19 08:01:43,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2018-09-19 08:01:43,573 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 15 [2018-09-19 08:01:43,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:43,573 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2018-09-19 08:01:43,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 08:01:43,574 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-09-19 08:01:43,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-19 08:01:43,575 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:43,575 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:43,575 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:43,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1642528819, now seen corresponding path program 1 times [2018-09-19 08:01:43,576 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:43,576 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-19 08:01:43,576 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [17], [21], [29], [32], [34], [37], [39], [40], [41], [42], [44], [45], [46] [2018-09-19 08:01:43,578 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:43,578 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:43,622 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 08:01:43,622 INFO L272 AbstractInterpreter]: Visited 18 different actions 156 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. [2018-09-19 08:01:43,665 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 08:01:43,685 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 08:01:43,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:43 BoogieIcfgContainer [2018-09-19 08:01:43,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:43,687 INFO L168 Benchmark]: Toolchain (without parser) took 3296.55 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -697.4 MB). Peak memory consumption was 56.6 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:43,689 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:01:43,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.57 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:43,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.14 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:01:43,691 INFO L168 Benchmark]: Boogie Preprocessor took 18.40 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:01:43,692 INFO L168 Benchmark]: RCFGBuilder took 367.00 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:43,694 INFO L168 Benchmark]: TraceAbstraction took 2547.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 99.4 MB). Peak memory consumption was 99.4 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:43,700 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 334.57 ms. Allocated memory is still 1.6 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 21.14 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 18.40 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 367.00 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2547.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 99.4 MB). Peak memory consumption was 99.4 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, 2.4s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 69 SDtfs, 32 SDslu, 180 SDs, 0 SdLazy, 139 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s 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, 0.4s AbstIntTime, 5 AbstIntIterations, 4 AbstIntStrong, 0.95 AbsIntWeakeningRatio, 0.44680851063829785 AbsIntAvgWeakeningVarsNumRemoved, 1.9574468085106382 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_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-01-43-713.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gj2007b_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-01-43-713.csv Received shutdown request...