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_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_vardep_true-unreach-call1_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:47:49,664 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:47:49,666 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:47:49,683 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:47:49,684 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:47:49,685 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:47:49,687 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:47:49,689 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:47:49,697 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:47:49,698 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:47:49,699 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:47:49,699 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:47:49,703 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:47:49,708 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:47:49,709 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:47:49,713 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:47:49,714 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:47:49,718 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:47:49,720 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:47:49,725 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:47:49,726 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:47:49,729 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:47:49,735 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 15:47:49,754 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-09-15 15:47:49,787 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:47:49,788 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:47:49,789 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:47:49,789 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:47:49,789 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:47:49,790 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:47:49,790 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:47:49,790 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:47:49,790 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-09-15 15:47:49,790 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:47:49,791 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:47:49,791 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 15:47:49,792 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:47:49,792 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:47:49,792 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:47:49,793 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:47:49,793 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:47:49,793 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:47:49,793 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:47:49,793 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:47:49,794 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:47:49,794 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:47:49,794 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:47:49,794 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:47:49,796 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:47:49,796 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:47:49,796 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:47:49,796 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:47:49,797 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:47:49,797 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:47:49,797 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:47:49,797 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:47:49,798 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:47:49,798 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:47:49,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:47:49,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:47:49,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:47:49,891 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:47:49,892 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:47:49,892 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_true-unreach-call1_true-termination.i [2018-09-15 15:47:50,253 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62e72561a/647d96d8b2844da689b485978488f46f/FLAGef97365bd [2018-09-15 15:47:50,453 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:47:50,454 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_true-unreach-call1_true-termination.i [2018-09-15 15:47:50,466 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62e72561a/647d96d8b2844da689b485978488f46f/FLAGef97365bd [2018-09-15 15:47:50,486 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62e72561a/647d96d8b2844da689b485978488f46f [2018-09-15 15:47:50,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:47:50,499 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:47:50,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:47:50,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:47:50,507 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:47:50,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:47:50" (1/1) ... [2018-09-15 15:47:50,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7005b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50, skipping insertion in model container [2018-09-15 15:47:50,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:47:50" (1/1) ... [2018-09-15 15:47:50,522 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:47:50,710 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:47:50,729 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:47:50,733 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:47:50,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50 WrapperNode [2018-09-15 15:47:50,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:47:50,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:47:50,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:47:50,747 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:47:50,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50" (1/1) ... [2018-09-15 15:47:50,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50" (1/1) ... [2018-09-15 15:47:50,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:47:50,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:47:50,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:47:50,770 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:47:50,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50" (1/1) ... [2018-09-15 15:47:50,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50" (1/1) ... [2018-09-15 15:47:50,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50" (1/1) ... [2018-09-15 15:47:50,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50" (1/1) ... [2018-09-15 15:47:50,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50" (1/1) ... [2018-09-15 15:47:50,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50" (1/1) ... [2018-09-15 15:47:50,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50" (1/1) ... [2018-09-15 15:47:50,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:47:50,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:47:50,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:47:50,793 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:47:50,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50" (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 15:47:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:47:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:47:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:47:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:47:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:47:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:47:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 15:47:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 15:47:51,284 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:47:51,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:47:51 BoogieIcfgContainer [2018-09-15 15:47:51,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:47:51,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:47:51,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:47:51,290 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:47:51,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:47:50" (1/3) ... [2018-09-15 15:47:51,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0594c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:47:51, skipping insertion in model container [2018-09-15 15:47:51,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:50" (2/3) ... [2018-09-15 15:47:51,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0594c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:47:51, skipping insertion in model container [2018-09-15 15:47:51,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:47:51" (3/3) ... [2018-09-15 15:47:51,294 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_vardep_true-unreach-call1_true-termination.i [2018-09-15 15:47:51,305 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:47:51,314 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:47:51,371 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:47:51,372 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:47:51,372 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:47:51,372 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:47:51,372 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:47:51,372 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:47:51,373 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:47:51,373 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:47:51,373 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:47:51,392 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-15 15:47:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 15:47:51,399 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:47:51,400 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:47:51,401 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:47:51,407 INFO L82 PathProgramCache]: Analyzing trace with hash -569563750, now seen corresponding path program 1 times [2018-09-15 15:47:51,410 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:47:51,411 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 15:47:51,413 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [14], [20], [23], [25], [31], [32], [33], [35] [2018-09-15 15:47:51,450 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-15 15:47:51,450 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:47:51,519 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:47:51,520 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-15 15:47:51,563 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:47:51,610 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 15:47:51,610 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:47:51,809 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:47:51,811 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:47:51,811 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 15:47:51,812 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:47:51,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 15:47:51,823 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 15:47:51,824 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:47:51,826 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2018-09-15 15:47:52,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:47:52,004 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2018-09-15 15:47:52,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 15:47:52,006 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-09-15 15:47:52,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:47:52,014 INFO L225 Difference]: With dead ends: 40 [2018-09-15 15:47:52,014 INFO L226 Difference]: Without dead ends: 23 [2018-09-15 15:47:52,018 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-15 15:47:52,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-15 15:47:52,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2018-09-15 15:47:52,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-09-15 15:47:52,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-09-15 15:47:52,055 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 11 [2018-09-15 15:47:52,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:47:52,055 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-09-15 15:47:52,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 15:47:52,056 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-09-15 15:47:52,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-15 15:47:52,057 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:47:52,057 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:47:52,057 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:47:52,058 INFO L82 PathProgramCache]: Analyzing trace with hash 501014179, now seen corresponding path program 1 times [2018-09-15 15:47:52,058 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:47:52,058 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-09-15 15:47:52,059 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [14], [20], [23], [25], [28], [30], [31], [32], [33], [35], [36] [2018-09-15 15:47:52,060 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-15 15:47:52,060 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:47:52,085 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 15:47:52,085 INFO L272 AbstractInterpreter]: Visited 14 different actions 30 times. Merged at 3 different actions 6 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 3 variables. [2018-09-15 15:47:52,109 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 15:47:52,129 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 15:47:52,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 03:47:52 BoogieIcfgContainer [2018-09-15 15:47:52,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 15:47:52,131 INFO L168 Benchmark]: Toolchain (without parser) took 1634.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -730.4 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2018-09-15 15:47:52,134 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 15:47:52,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.72 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 15:47:52,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.04 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 15:47:52,136 INFO L168 Benchmark]: Boogie Preprocessor took 22.07 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 15:47:52,137 INFO L168 Benchmark]: RCFGBuilder took 493.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-15 15:47:52,138 INFO L168 Benchmark]: TraceAbstraction took 844.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2018-09-15 15:47:52,143 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 245.72 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 23.04 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 22.07 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 493.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 844.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: 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: [L17] unsigned int i = 0; [L18] unsigned int j = 0; [L19] unsigned int k = 0; [L21] COND TRUE k < 0x0fffffff [L22] i = i + 1 [L23] j = j + 2 [L24] k = k + 3 [L26] CALL __VERIFIER_assert(k == (i + j)) [L9] COND FALSE, RET !(!(cond)) [L26] __VERIFIER_assert(k == (i + j)) [L21] COND TRUE k < 0x0fffffff [L22] i = i + 1 [L23] j = j + 2 [L24] k = k + 3 [L26] CALL __VERIFIER_assert(k == (i + j)) [L9] COND TRUE !(cond) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNKNOWN Result, 0.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 6 SDslu, 57 SDs, 0 SdLazy, 27 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.8666666666666666 AbsIntWeakeningRatio, 0.5 AbsIntAvgWeakeningVarsNumRemoved, 0.1 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/simple_vardep_true-unreach-call1_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_15-47-52-157.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/simple_vardep_true-unreach-call1_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_15-47-52-157.csv Received shutdown request...