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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call3_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 13:06:51,763 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 13:06:51,766 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 13:06:51,785 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 13:06:51,785 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 13:06:51,786 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 13:06:51,787 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 13:06:51,789 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 13:06:51,791 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 13:06:51,792 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 13:06:51,793 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 13:06:51,794 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 13:06:51,795 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 13:06:51,796 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 13:06:51,797 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 13:06:51,798 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 13:06:51,798 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 13:06:51,800 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 13:06:51,803 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 13:06:51,804 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 13:06:51,805 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 13:06:51,807 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 13:06:51,809 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 13:06:51,819 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 13:06:51,835 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 13:06:51,836 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 13:06:51,837 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 13:06:51,837 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 13:06:51,837 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 13:06:51,837 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 13:06:51,838 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 13:06:51,838 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 13:06:51,838 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 13:06:51,838 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 13:06:51,838 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 13:06:51,839 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 13:06:51,839 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 13:06:51,840 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 13:06:51,840 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 13:06:51,840 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 13:06:51,840 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 13:06:51,840 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 13:06:51,841 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 13:06:51,841 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 13:06:51,841 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 13:06:51,841 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 13:06:51,841 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 13:06:51,842 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 13:06:51,842 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 13:06:51,842 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 13:06:51,842 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 13:06:51,842 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 13:06:51,843 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 13:06:51,843 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 13:06:51,843 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 13:06:51,843 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 13:06:51,843 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 13:06:51,844 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 13:06:51,907 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 13:06:51,926 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 13:06:51,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 13:06:51,934 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 13:06:51,935 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 13:06:51,935 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call3_true-termination.i [2018-09-15 13:06:52,325 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4457aa1dc/fa8ac43a01db43f9a1456aa00628fb7c/FLAG69bd9f636 [2018-09-15 13:06:52,467 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 13:06:52,468 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call3_true-termination.i [2018-09-15 13:06:52,474 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4457aa1dc/fa8ac43a01db43f9a1456aa00628fb7c/FLAG69bd9f636 [2018-09-15 13:06:52,491 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4457aa1dc/fa8ac43a01db43f9a1456aa00628fb7c [2018-09-15 13:06:52,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 13:06:52,510 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 13:06:52,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 13:06:52,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 13:06:52,518 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 13:06:52,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:06:52" (1/1) ... [2018-09-15 13:06:52,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d304226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52, skipping insertion in model container [2018-09-15 13:06:52,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:06:52" (1/1) ... [2018-09-15 13:06:52,536 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 13:06:52,736 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:06:52,754 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 13:06:52,760 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:06:52,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52 WrapperNode [2018-09-15 13:06:52,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 13:06:52,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 13:06:52,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 13:06:52,775 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 13:06:52,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52" (1/1) ... [2018-09-15 13:06:52,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52" (1/1) ... [2018-09-15 13:06:52,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 13:06:52,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 13:06:52,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 13:06:52,799 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 13:06:52,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52" (1/1) ... [2018-09-15 13:06:52,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52" (1/1) ... [2018-09-15 13:06:52,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52" (1/1) ... [2018-09-15 13:06:52,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52" (1/1) ... [2018-09-15 13:06:52,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52" (1/1) ... [2018-09-15 13:06:52,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52" (1/1) ... [2018-09-15 13:06:52,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52" (1/1) ... [2018-09-15 13:06:52,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 13:06:52,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 13:06:52,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 13:06:52,823 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 13:06:52,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52" (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 13:06:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 13:06:52,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 13:06:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 13:06:52,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 13:06:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 13:06:52,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 13:06:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 13:06:52,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 13:06:53,251 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 13:06:53,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:06:53 BoogieIcfgContainer [2018-09-15 13:06:53,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 13:06:53,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 13:06:53,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 13:06:53,271 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 13:06:53,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 01:06:52" (1/3) ... [2018-09-15 13:06:53,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6da2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:06:53, skipping insertion in model container [2018-09-15 13:06:53,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:06:52" (2/3) ... [2018-09-15 13:06:53,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6da2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:06:53, skipping insertion in model container [2018-09-15 13:06:53,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:06:53" (3/3) ... [2018-09-15 13:06:53,279 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call3_true-termination.i [2018-09-15 13:06:53,296 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 13:06:53,305 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 13:06:53,358 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 13:06:53,359 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 13:06:53,359 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 13:06:53,359 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 13:06:53,359 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 13:06:53,359 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 13:06:53,359 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 13:06:53,360 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 13:06:53,360 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 13:06:53,380 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-15 13:06:53,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 13:06:53,387 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:06:53,388 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:06:53,389 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:06:53,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1885467766, now seen corresponding path program 1 times [2018-09-15 13:06:53,398 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:06:53,400 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 13:06:53,404 INFO L202 CegarAbsIntRunner]: [0], [4], [16], [18], [22], [27], [35], [38], [40], [46], [47], [48], [50] [2018-09-15 13:06:53,439 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:06:53,440 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:06:53,492 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:06:53,493 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-15 13:06:53,509 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:06:53,550 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-15 13:06:53,550 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:06:53,552 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:06:53,554 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:06:53,554 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-15 13:06:53,554 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:06:53,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-15 13:06:53,565 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-15 13:06:53,566 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-15 13:06:53,569 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-09-15 13:06:53,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 13:06:53,592 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2018-09-15 13:06:53,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-15 13:06:53,594 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-09-15 13:06:53,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 13:06:53,603 INFO L225 Difference]: With dead ends: 37 [2018-09-15 13:06:53,603 INFO L226 Difference]: Without dead ends: 18 [2018-09-15 13:06:53,607 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-15 13:06:53,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-15 13:06:53,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-09-15 13:06:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-15 13:06:53,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-09-15 13:06:53,653 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-09-15 13:06:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 13:06:53,653 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-09-15 13:06:53,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-15 13:06:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-09-15 13:06:53,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 13:06:53,655 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:06:53,655 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:06:53,655 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:06:53,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1968857590, now seen corresponding path program 1 times [2018-09-15 13:06:53,656 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:06:53,656 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 13:06:53,657 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [18], [22], [27], [35], [38], [40], [46], [47], [48], [50] [2018-09-15 13:06:53,658 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:06:53,658 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:06:53,675 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 13:06:53,696 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 13:06:53,697 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-15 13:06:53,733 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 13:06:53,749 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 13:06:53,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 01:06:53 BoogieIcfgContainer [2018-09-15 13:06:53,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 13:06:53,750 INFO L168 Benchmark]: Toolchain (without parser) took 1244.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -763.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 13:06:53,752 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 13:06:53,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.97 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 13:06:53,754 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.04 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 13:06:53,754 INFO L168 Benchmark]: Boogie Preprocessor took 23.41 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 13:06:53,755 INFO L168 Benchmark]: RCFGBuilder took 429.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.7 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-15 13:06:53,756 INFO L168 Benchmark]: TraceAbstraction took 495.29 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2018-09-15 13:06:53,760 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 262.97 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 24.04 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 23.41 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 429.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.7 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 495.29 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: 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: [L20] unsigned int array[10000]; [L21] unsigned int index = 0; [L22] unsigned int tmp = 0; [L24] COND FALSE !(index < 10000) [L30] index = 0 [L30] COND TRUE index < 10000 [L31] CALL __VERIFIER_assert((array[index] == 2*index) || (array[index] == 0)) [L12] COND TRUE !(cond) [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. UNKNOWN Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.5 AbsIntAvgWeakeningVarsNumRemoved, 0.08333333333333333 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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_array_index_value_true-unreach-call3_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_13-06-53-775.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/simple_array_index_value_true-unreach-call3_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_13-06-53-775.csv Received shutdown request...