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-lit/cggmp2005_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 05:01:25,019 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 05:01:25,022 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 05:01:25,040 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 05:01:25,041 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 05:01:25,043 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 05:01:25,045 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 05:01:25,047 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 05:01:25,049 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 05:01:25,052 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 05:01:25,054 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 05:01:25,054 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 05:01:25,055 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 05:01:25,056 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 05:01:25,063 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 05:01:25,065 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 05:01:25,066 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 05:01:25,069 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 05:01:25,071 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 05:01:25,073 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 05:01:25,074 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 05:01:25,075 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 05:01:25,077 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 05:01:25,085 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 05:01:25,100 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 05:01:25,100 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 05:01:25,101 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 05:01:25,101 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 05:01:25,101 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 05:01:25,101 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 05:01:25,102 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 05:01:25,102 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 05:01:25,102 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 05:01:25,102 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-19 05:01:25,102 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 05:01:25,103 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 05:01:25,103 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 05:01:25,104 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 05:01:25,104 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 05:01:25,104 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 05:01:25,104 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 05:01:25,104 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 05:01:25,105 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 05:01:25,105 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 05:01:25,105 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 05:01:25,105 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 05:01:25,105 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 05:01:25,105 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 05:01:25,106 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 05:01:25,106 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 05:01:25,106 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 05:01:25,106 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 05:01:25,106 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 05:01:25,107 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 05:01:25,107 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 05:01:25,107 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 05:01:25,107 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 05:01:25,107 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 05:01:25,108 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 05:01:25,151 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 05:01:25,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 05:01:25,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 05:01:25,169 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 05:01:25,169 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 05:01:25,170 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_true-unreach-call_true-termination.c.i [2018-09-19 05:01:25,520 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb6b190d7/cc395d90ae67463a9318abd672d44002/FLAG2add0196a [2018-09-19 05:01:25,694 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 05:01:25,694 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_true-unreach-call_true-termination.c.i [2018-09-19 05:01:25,701 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb6b190d7/cc395d90ae67463a9318abd672d44002/FLAG2add0196a [2018-09-19 05:01:25,716 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb6b190d7/cc395d90ae67463a9318abd672d44002 [2018-09-19 05:01:25,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 05:01:25,729 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 05:01:25,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:25,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 05:01:25,741 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 05:01:25,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:25" (1/1) ... [2018-09-19 05:01:25,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4799c090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:25, skipping insertion in model container [2018-09-19 05:01:25,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:25" (1/1) ... [2018-09-19 05:01:25,759 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 05:01:25,962 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:25,982 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 05:01:25,989 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:26,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26 WrapperNode [2018-09-19 05:01:26,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:26,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:26,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 05:01:26,003 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 05:01:26,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26" (1/1) ... [2018-09-19 05:01:26,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26" (1/1) ... [2018-09-19 05:01:26,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:26,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 05:01:26,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 05:01:26,028 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 05:01:26,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26" (1/1) ... [2018-09-19 05:01:26,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26" (1/1) ... [2018-09-19 05:01:26,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26" (1/1) ... [2018-09-19 05:01:26,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26" (1/1) ... [2018-09-19 05:01:26,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26" (1/1) ... [2018-09-19 05:01:26,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26" (1/1) ... [2018-09-19 05:01:26,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26" (1/1) ... [2018-09-19 05:01:26,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 05:01:26,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 05:01:26,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 05:01:26,053 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 05:01:26,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26" (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 05:01:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 05:01:26,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 05:01:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 05:01:26,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 05:01:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 05:01:26,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 05:01:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 05:01:26,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 05:01:26,529 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 05:01:26,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:26 BoogieIcfgContainer [2018-09-19 05:01:26,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 05:01:26,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 05:01:26,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 05:01:26,534 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 05:01:26,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 05:01:25" (1/3) ... [2018-09-19 05:01:26,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8e5b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:26, skipping insertion in model container [2018-09-19 05:01:26,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:26" (2/3) ... [2018-09-19 05:01:26,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8e5b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:26, skipping insertion in model container [2018-09-19 05:01:26,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:26" (3/3) ... [2018-09-19 05:01:26,538 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_true-unreach-call_true-termination.c.i [2018-09-19 05:01:26,548 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 05:01:26,557 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 05:01:26,607 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 05:01:26,607 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 05:01:26,607 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 05:01:26,608 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 05:01:26,608 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 05:01:26,608 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 05:01:26,608 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 05:01:26,608 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 05:01:26,608 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 05:01:26,627 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-09-19 05:01:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-19 05:01:26,634 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:26,635 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:26,636 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:26,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2018-09-19 05:01:26,645 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:26,646 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-19 05:01:26,648 INFO L202 CegarAbsIntRunner]: [0], [4], [16], [21], [24], [26], [32], [33], [34], [36] [2018-09-19 05:01:26,688 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:26,689 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:26,739 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:26,740 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-19 05:01:26,749 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:26,791 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-19 05:01:26,791 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:26,822 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:26,824 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:26,825 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 05:01:26,825 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:26,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 05:01:26,847 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 05:01:26,849 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 05:01:26,852 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2018-09-19 05:01:26,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:26,943 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2018-09-19 05:01:26,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 05:01:26,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-19 05:01:26,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:26,956 INFO L225 Difference]: With dead ends: 37 [2018-09-19 05:01:26,957 INFO L226 Difference]: Without dead ends: 15 [2018-09-19 05:01:26,961 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 05:01:26,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-19 05:01:26,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2018-09-19 05:01:27,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-09-19 05:01:27,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-09-19 05:01:27,004 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-09-19 05:01:27,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:27,004 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-09-19 05:01:27,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 05:01:27,005 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-09-19 05:01:27,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 05:01:27,005 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:27,006 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:27,006 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:27,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1861991801, now seen corresponding path program 1 times [2018-09-19 05:01:27,007 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:27,007 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 05:01:27,007 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [21], [24], [26], [32], [33], [34], [36] [2018-09-19 05:01:27,009 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:27,009 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:27,030 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:27,031 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-19 05:01:27,056 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:27,066 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-19 05:01:27,067 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:27,077 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:27,077 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:27,078 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 05:01:27,078 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:27,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 05:01:27,079 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 05:01:27,079 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 05:01:27,080 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2018-09-19 05:01:27,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:27,113 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-09-19 05:01:27,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 05:01:27,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-19 05:01:27,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:27,115 INFO L225 Difference]: With dead ends: 19 [2018-09-19 05:01:27,115 INFO L226 Difference]: Without dead ends: 14 [2018-09-19 05:01:27,117 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 9 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 05:01:27,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-19 05:01:27,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-19 05:01:27,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-19 05:01:27,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-09-19 05:01:27,124 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-09-19 05:01:27,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:27,124 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-09-19 05:01:27,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 05:01:27,125 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-09-19 05:01:27,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 05:01:27,125 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:27,126 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:27,126 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:27,126 INFO L82 PathProgramCache]: Analyzing trace with hash -661808769, now seen corresponding path program 1 times [2018-09-19 05:01:27,126 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:27,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 05:01:27,127 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [21], [24], [26], [32], [33], [34], [36] [2018-09-19 05:01:27,128 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:27,129 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:27,166 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 05:01:27,167 INFO L272 AbstractInterpreter]: Visited 12 different actions 38 times. Merged at 3 different actions 14 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-09-19 05:01:27,188 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 05:01:27,205 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 05:01:27,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 05:01:27 BoogieIcfgContainer [2018-09-19 05:01:27,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 05:01:27,206 INFO L168 Benchmark]: Toolchain (without parser) took 1479.95 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -739.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:27,209 INFO L168 Benchmark]: CDTParser took 0.19 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 05:01:27,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.41 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 05:01:27,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.38 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 05:01:27,212 INFO L168 Benchmark]: Boogie Preprocessor took 24.71 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 05:01:27,212 INFO L168 Benchmark]: RCFGBuilder took 477.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:27,214 INFO L168 Benchmark]: TraceAbstraction took 674.20 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: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:27,219 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 272.41 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 24.38 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 24.71 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 477.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 674.20 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: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L11] int i,j; [L12] i = 1 [L13] j = 10 [L14] COND TRUE j >= i [L15] i = i + 2 [L16] j = -1 + j [L14] COND FALSE !(j >= i) [L18] CALL __VERIFIER_assert(j == 6) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNKNOWN Result, 0.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 4 SDslu, 25 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.42105263157894735 AbsIntAvgWeakeningVarsNumRemoved, 0.05263157894736842 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 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/cggmp2005_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_05-01-27-232.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_05-01-27-232.csv Received shutdown request...