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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/sum03_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:29:00,823 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:29:00,826 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:29:00,838 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:29:00,839 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:29:00,840 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:29:00,841 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:29:00,843 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:29:00,845 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:29:00,846 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:29:00,847 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:29:00,847 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:29:00,848 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:29:00,849 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:29:00,850 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:29:00,851 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:29:00,852 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:29:00,854 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:29:00,856 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:29:00,858 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:29:00,859 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:29:00,860 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:29:00,863 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 01:29:00,872 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 01:29:00,887 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:29:00,888 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:29:00,889 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:29:00,889 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:29:00,889 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:29:00,889 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:29:00,890 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:29:00,890 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:29:00,890 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:29:00,890 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:29:00,890 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:29:00,891 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:29:00,891 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:29:00,892 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:29:00,892 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:29:00,892 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:29:00,892 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:29:00,893 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:29:00,893 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:29:00,893 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:29:00,893 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:29:00,893 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:29:00,894 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:29:00,894 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:29:00,894 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:29:00,894 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:29:00,894 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:29:00,895 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:29:00,895 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:29:00,895 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:29:00,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:29:00,895 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:29:00,895 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:29:00,895 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:29:00,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:29:00,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:29:00,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:29:00,961 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:29:00,961 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:29:00,962 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum03_true-unreach-call_false-termination.i [2018-09-19 01:29:01,315 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/936a38e36/a9277202c0bb4319af1f9ccf194feccc/FLAG8210af3b6 [2018-09-19 01:29:01,486 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:29:01,487 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03_true-unreach-call_false-termination.i [2018-09-19 01:29:01,492 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/936a38e36/a9277202c0bb4319af1f9ccf194feccc/FLAG8210af3b6 [2018-09-19 01:29:01,509 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/936a38e36/a9277202c0bb4319af1f9ccf194feccc [2018-09-19 01:29:01,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:29:01,522 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:29:01,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:01,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:29:01,531 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:29:01,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b469391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01, skipping insertion in model container [2018-09-19 01:29:01,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,548 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:29:01,746 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:01,765 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:29:01,770 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:01,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01 WrapperNode [2018-09-19 01:29:01,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:01,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:01,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:29:01,785 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:29:01,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:01,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:29:01,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:29:01,809 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:29:01,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (1/1) ... [2018-09-19 01:29:01,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:29:01,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:29:01,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:29:01,832 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:29:01,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (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 01:29:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:29:01,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:29:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:29:01,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:29:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:29:01,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:29:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 01:29:01,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 01:29:02,263 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:29:02,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:02 BoogieIcfgContainer [2018-09-19 01:29:02,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:29:02,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:29:02,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:29:02,272 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:29:02,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:29:01" (1/3) ... [2018-09-19 01:29:02,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12550ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:02, skipping insertion in model container [2018-09-19 01:29:02,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:01" (2/3) ... [2018-09-19 01:29:02,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12550ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:02, skipping insertion in model container [2018-09-19 01:29:02,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:02" (3/3) ... [2018-09-19 01:29:02,277 INFO L112 eAbstractionObserver]: Analyzing ICFG sum03_true-unreach-call_false-termination.i [2018-09-19 01:29:02,287 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:29:02,294 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:29:02,345 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:29:02,346 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:29:02,346 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:29:02,346 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:29:02,346 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:29:02,346 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:29:02,346 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:29:02,347 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:29:02,347 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:29:02,365 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-19 01:29:02,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 01:29:02,372 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:02,373 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:02,374 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:02,380 INFO L82 PathProgramCache]: Analyzing trace with hash -569563750, now seen corresponding path program 1 times [2018-09-19 01:29:02,383 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:02,384 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 01:29:02,386 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [14], [20], [23], [25], [31], [32], [33], [35] [2018-09-19 01:29:02,449 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:02,449 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:02,590 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 01:29:02,609 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:02,610 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-19 01:29:02,652 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:02,763 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-19 01:29:02,764 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:02,938 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:02,939 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:02,940 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 01:29:02,940 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:02,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 01:29:02,953 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 01:29:02,953 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-19 01:29:02,956 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2018-09-19 01:29:03,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:03,149 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2018-09-19 01:29:03,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 01:29:03,151 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-09-19 01:29:03,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:03,159 INFO L225 Difference]: With dead ends: 36 [2018-09-19 01:29:03,159 INFO L226 Difference]: Without dead ends: 23 [2018-09-19 01:29:03,162 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-19 01:29:03,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-19 01:29:03,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2018-09-19 01:29:03,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-09-19 01:29:03,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-09-19 01:29:03,203 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 11 [2018-09-19 01:29:03,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:03,204 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-09-19 01:29:03,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 01:29:03,204 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-09-19 01:29:03,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-19 01:29:03,205 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:03,205 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:03,206 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:03,206 INFO L82 PathProgramCache]: Analyzing trace with hash 501014179, now seen corresponding path program 1 times [2018-09-19 01:29:03,206 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:03,207 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-09-19 01:29:03,207 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [14], [20], [23], [25], [28], [30], [31], [32], [33], [35], [36] [2018-09-19 01:29:03,209 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:03,209 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:03,217 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 01:29:03,351 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 01:29:03,351 INFO L272 AbstractInterpreter]: Visited 14 different actions 85 times. Merged at 3 different actions 24 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 7 variables. [2018-09-19 01:29:03,361 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 01:29:03,381 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 01:29:03,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:29:03 BoogieIcfgContainer [2018-09-19 01:29:03,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:29:03,383 INFO L168 Benchmark]: Toolchain (without parser) took 1862.95 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -733.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:03,385 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. [2018-09-19 01:29:03,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.06 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 01:29:03,387 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.79 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 01:29:03,388 INFO L168 Benchmark]: Boogie Preprocessor took 22.80 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 01:29:03,388 INFO L168 Benchmark]: RCFGBuilder took 432.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -795.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:03,391 INFO L168 Benchmark]: TraceAbstraction took 1116.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:03,397 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 260.06 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 23.79 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 22.80 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 432.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -795.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1116.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: 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: [L10] unsigned int sn=0; [L11] unsigned int loop1=__VERIFIER_nondet_uint(), n1=__VERIFIER_nondet_uint(); [L11] unsigned int loop1=__VERIFIER_nondet_uint(), n1=__VERIFIER_nondet_uint(); [L12] unsigned int x=0; [L13] COND TRUE 1 [L14] sn = sn + (2) [L15] x++ [L15] x++ [L16] CALL __VERIFIER_assert(sn==x*(2) || sn == 0) [L3] COND FALSE, RET !(!(cond)) [L16] __VERIFIER_assert(sn==x*(2) || sn == 0) [L13] COND TRUE 1 [L14] sn = sn + (2) [L15] x++ [L15] x++ [L16] CALL __VERIFIER_assert(sn==x*(2) || sn == 0) [L3] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNKNOWN Result, 1.0s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 6 SDslu, 43 SDs, 0 SdLazy, 25 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9214285714285715 AbsIntWeakeningRatio, 0.7 AbsIntAvgWeakeningVarsNumRemoved, 0.7 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum03_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-29-03-411.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum03_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-29-03-411.csv Received shutdown request...