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/loops/array_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 05:01:00,015 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 05:01:00,017 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 05:01:00,036 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 05:01:00,036 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 05:01:00,037 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 05:01:00,040 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 05:01:00,043 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 05:01:00,046 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 05:01:00,047 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 05:01:00,048 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 05:01:00,048 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 05:01:00,057 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 05:01:00,060 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 05:01:00,063 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 05:01:00,064 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 05:01:00,065 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 05:01:00,067 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 05:01:00,071 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 05:01:00,075 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 05:01:00,077 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 05:01:00,079 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 05:01:00,084 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 05:01:00,095 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 [2018-09-19 05:01:00,127 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 05:01:00,127 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 05:01:00,128 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 05:01:00,128 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 05:01:00,128 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 05:01:00,129 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 05:01:00,129 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 05:01:00,129 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 05:01:00,130 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 05:01:00,130 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-19 05:01:00,130 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 05:01:00,130 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 05:01:00,130 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 05:01:00,131 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 05:01:00,131 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 05:01:00,131 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 05:01:00,131 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 05:01:00,132 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 05:01:00,132 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 05:01:00,134 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 05:01:00,134 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 05:01:00,134 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 05:01:00,134 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 05:01:00,135 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 05:01:00,135 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 05:01:00,135 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 05:01:00,135 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 05:01:00,135 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 05:01:00,135 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 05:01:00,136 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 05:01:00,136 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 05:01:00,136 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 05:01:00,136 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 05:01:00,137 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 05:01:00,137 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 05:01:00,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 05:01:00,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 05:01:00,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 05:01:00,237 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 05:01:00,237 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 05:01:00,238 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array_true-unreach-call_true-termination.i [2018-09-19 05:01:00,601 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16ee2f2eb/8986d053185f4cf1b97a584e55fd4260/FLAG58ac6e2ba [2018-09-19 05:01:00,796 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 05:01:00,797 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array_true-unreach-call_true-termination.i [2018-09-19 05:01:00,804 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16ee2f2eb/8986d053185f4cf1b97a584e55fd4260/FLAG58ac6e2ba [2018-09-19 05:01:00,822 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16ee2f2eb/8986d053185f4cf1b97a584e55fd4260 [2018-09-19 05:01:00,833 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 05:01:00,837 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 05:01:00,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:00,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 05:01:00,845 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 05:01:00,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:00" (1/1) ... [2018-09-19 05:01:00,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1a97a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:00, skipping insertion in model container [2018-09-19 05:01:00,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:00" (1/1) ... [2018-09-19 05:01:00,862 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 05:01:01,058 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:01,076 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 05:01:01,082 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:01,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01 WrapperNode [2018-09-19 05:01:01,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:01,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:01,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 05:01:01,096 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 05:01:01,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:01,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 05:01:01,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 05:01:01,120 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 05:01:01,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (1/1) ... [2018-09-19 05:01:01,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 05:01:01,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 05:01:01,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 05:01:01,143 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 05:01:01,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (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 05:01:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 05:01:01,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 05:01:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 05:01:01,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 05:01:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 05:01:01,205 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 05:01:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 05:01:01,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 05:01:01,548 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 05:01:01,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:01 BoogieIcfgContainer [2018-09-19 05:01:01,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 05:01:01,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 05:01:01,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 05:01:01,553 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 05:01:01,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 05:01:00" (1/3) ... [2018-09-19 05:01:01,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5893edc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:01, skipping insertion in model container [2018-09-19 05:01:01,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:01" (2/3) ... [2018-09-19 05:01:01,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5893edc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:01, skipping insertion in model container [2018-09-19 05:01:01,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:01" (3/3) ... [2018-09-19 05:01:01,558 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call_true-termination.i [2018-09-19 05:01:01,578 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 05:01:01,590 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 05:01:01,651 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 05:01:01,652 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 05:01:01,652 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 05:01:01,653 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 05:01:01,653 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 05:01:01,653 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 05:01:01,653 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 05:01:01,654 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 05:01:01,655 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 05:01:01,700 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-09-19 05:01:01,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-19 05:01:01,713 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:01,714 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:01,715 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:01,726 INFO L82 PathProgramCache]: Analyzing trace with hash -147882559, now seen corresponding path program 1 times [2018-09-19 05:01:01,729 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:01,730 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-19 05:01:01,734 INFO L202 CegarAbsIntRunner]: [0], [4], [22], [27], [30], [32], [38], [39], [40], [42] [2018-09-19 05:01:01,770 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:01,771 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:01,839 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:01,841 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-19 05:01:01,857 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:01,898 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 66.67% of their original sizes. [2018-09-19 05:01:01,898 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:01,906 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:01,907 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:01,909 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 05:01:01,909 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:01,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 05:01:01,919 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 05:01:01,920 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 05:01:01,922 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-09-19 05:01:01,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:01,968 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2018-09-19 05:01:01,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 05:01:01,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-19 05:01:01,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:01,984 INFO L225 Difference]: With dead ends: 41 [2018-09-19 05:01:01,984 INFO L226 Difference]: Without dead ends: 19 [2018-09-19 05:01:01,989 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 05:01:02,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-19 05:01:02,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2018-09-19 05:01:02,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-19 05:01:02,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-09-19 05:01:02,026 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2018-09-19 05:01:02,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:02,026 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-09-19 05:01:02,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 05:01:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-09-19 05:01:02,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 05:01:02,027 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:02,028 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:02,028 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:02,029 INFO L82 PathProgramCache]: Analyzing trace with hash -718385346, now seen corresponding path program 1 times [2018-09-19 05:01:02,029 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:02,029 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 05:01:02,029 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [27], [30], [32], [38], [39], [40], [42] [2018-09-19 05:01:02,031 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:02,031 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:02,037 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 05:01:02,045 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 05:01:02,046 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-19 05:01:02,072 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 05:01:02,092 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 05:01:02,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 05:01:02 BoogieIcfgContainer [2018-09-19 05:01:02,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 05:01:02,094 INFO L168 Benchmark]: Toolchain (without parser) took 1260.15 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -723.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:02,096 INFO L168 Benchmark]: CDTParser took 0.28 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. [2018-09-19 05:01:02,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:02,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:02,098 INFO L168 Benchmark]: Boogie Preprocessor took 22.46 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:02,099 INFO L168 Benchmark]: RCFGBuilder took 406.51 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:02,100 INFO L168 Benchmark]: TraceAbstraction took 543.13 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:02,105 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 257.74 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 23.50 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 22.46 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 406.51 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -768.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 543.13 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 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: [L13] unsigned int SIZE=1; [L14] unsigned int j,k; [L15] int array[SIZE], menor; [L17] menor = __VERIFIER_nondet_int() [L19] j=0 [L19] COND FALSE !(j=menor) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNKNOWN Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 7 SDslu, 19 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 0.7777777777777778 AbsIntAvgWeakeningVarsNumRemoved, 0.2222222222222222 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 5 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/array_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_05-01-02-123.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_05-01-02-123.csv Received shutdown request...