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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/terminator_02_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:07,868 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:07,871 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:07,889 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:07,889 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:07,890 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:07,893 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:07,895 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:07,897 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:07,900 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:07,903 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:07,903 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:07,904 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:07,905 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:07,907 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:07,907 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:07,909 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:07,911 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:07,913 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:07,914 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:07,916 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:07,917 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:07,920 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 08:01:07,932 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 08:01:07,947 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:07,947 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:07,948 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:07,949 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:07,949 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:07,949 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:07,949 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:07,949 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:07,950 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:07,950 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:07,950 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:07,950 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:07,950 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:07,951 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:07,951 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:07,951 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:07,952 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:07,952 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:07,952 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:07,952 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:07,953 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:07,953 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:07,953 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:07,953 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:07,953 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:07,954 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:07,954 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:07,954 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:07,954 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:07,954 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:07,956 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:07,956 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:07,956 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:07,956 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:07,956 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:08,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:08,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:08,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:08,033 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:08,033 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:08,034 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02_true-unreach-call_true-termination.i [2018-09-19 08:01:08,395 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e75403461/8a8e4d5117bf4cb4abeeb0b843cadbdb/FLAG3be7da8ee [2018-09-19 08:01:08,518 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:08,519 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02_true-unreach-call_true-termination.i [2018-09-19 08:01:08,526 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e75403461/8a8e4d5117bf4cb4abeeb0b843cadbdb/FLAG3be7da8ee [2018-09-19 08:01:08,541 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e75403461/8a8e4d5117bf4cb4abeeb0b843cadbdb [2018-09-19 08:01:08,551 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:08,554 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:08,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:08,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:08,565 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:08,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:08" (1/1) ... [2018-09-19 08:01:08,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e10ba6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08, skipping insertion in model container [2018-09-19 08:01:08,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:08" (1/1) ... [2018-09-19 08:01:08,582 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:08,827 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:08,846 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:08,852 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:08,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08 WrapperNode [2018-09-19 08:01:08,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:08,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:08,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:08,867 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:08,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08" (1/1) ... [2018-09-19 08:01:08,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08" (1/1) ... [2018-09-19 08:01:08,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:08,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:08,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:08,892 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:08,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08" (1/1) ... [2018-09-19 08:01:08,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08" (1/1) ... [2018-09-19 08:01:08,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08" (1/1) ... [2018-09-19 08:01:08,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08" (1/1) ... [2018-09-19 08:01:08,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08" (1/1) ... [2018-09-19 08:01:08,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08" (1/1) ... [2018-09-19 08:01:08,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08" (1/1) ... [2018-09-19 08:01:08,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:08,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:08,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:08,914 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:08,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08" (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 08:01:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:09,302 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:09,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:09 BoogieIcfgContainer [2018-09-19 08:01:09,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:09,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:09,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:09,320 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:09,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:08" (1/3) ... [2018-09-19 08:01:09,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f781fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:09, skipping insertion in model container [2018-09-19 08:01:09,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:08" (2/3) ... [2018-09-19 08:01:09,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f781fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:09, skipping insertion in model container [2018-09-19 08:01:09,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:09" (3/3) ... [2018-09-19 08:01:09,331 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02_true-unreach-call_true-termination.i [2018-09-19 08:01:09,354 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:09,370 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:09,448 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:09,449 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:09,449 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:09,449 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:09,450 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:09,450 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:09,450 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:09,450 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:09,450 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:09,474 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-09-19 08:01:09,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-19 08:01:09,490 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:09,494 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:09,495 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:09,510 INFO L82 PathProgramCache]: Analyzing trace with hash -60552007, now seen corresponding path program 1 times [2018-09-19 08:01:09,512 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:09,513 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-19 08:01:09,515 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [38], [43], [46], [48], [54], [55], [56], [58] [2018-09-19 08:01:09,568 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:09,569 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:09,617 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:09,618 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-19 08:01:09,633 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:09,700 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-19 08:01:09,700 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:09,867 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:09,868 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:09,869 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-19 08:01:09,869 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:09,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-19 08:01:09,880 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-19 08:01:09,881 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-09-19 08:01:09,884 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 7 states. [2018-09-19 08:01:10,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:10,296 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2018-09-19 08:01:10,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 08:01:10,299 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-09-19 08:01:10,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:10,311 INFO L225 Difference]: With dead ends: 61 [2018-09-19 08:01:10,311 INFO L226 Difference]: Without dead ends: 29 [2018-09-19 08:01:10,315 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-09-19 08:01:10,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-09-19 08:01:10,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 17. [2018-09-19 08:01:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-19 08:01:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-09-19 08:01:10,359 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 14 [2018-09-19 08:01:10,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:10,359 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-09-19 08:01:10,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-19 08:01:10,361 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-09-19 08:01:10,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-19 08:01:10,361 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:10,362 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:10,362 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:10,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1989785303, now seen corresponding path program 1 times [2018-09-19 08:01:10,364 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:10,365 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-19 08:01:10,365 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [24], [28], [43], [46], [48], [54], [55], [56], [58] [2018-09-19 08:01:10,369 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:10,369 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:10,397 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:10,399 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-19 08:01:10,436 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:10,478 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-19 08:01:10,478 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:10,890 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:10,891 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:10,891 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 08:01:10,891 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:10,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 08:01:10,892 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 08:01:10,893 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-19 08:01:10,893 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 10 states. [2018-09-19 08:01:11,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:11,046 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2018-09-19 08:01:11,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-19 08:01:11,047 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2018-09-19 08:01:11,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:11,049 INFO L225 Difference]: With dead ends: 33 [2018-09-19 08:01:11,049 INFO L226 Difference]: Without dead ends: 28 [2018-09-19 08:01:11,051 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-09-19 08:01:11,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-09-19 08:01:11,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 19. [2018-09-19 08:01:11,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-19 08:01:11,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-09-19 08:01:11,057 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 15 [2018-09-19 08:01:11,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:11,057 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-09-19 08:01:11,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 08:01:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-09-19 08:01:11,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-19 08:01:11,059 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:11,059 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:11,059 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:11,059 INFO L82 PathProgramCache]: Analyzing trace with hash 767970866, now seen corresponding path program 1 times [2018-09-19 08:01:11,060 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:11,060 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-09-19 08:01:11,060 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [24], [28], [30], [33], [43], [46], [48], [54], [55], [56], [58] [2018-09-19 08:01:11,062 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:11,062 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:11,095 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 08:01:11,100 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:11,101 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 7 variables. [2018-09-19 08:01:11,135 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:11,161 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-19 08:01:11,162 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:11,425 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:11,426 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:11,426 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 08:01:11,427 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:11,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 08:01:11,428 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 08:01:11,428 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-09-19 08:01:11,429 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 11 states. [2018-09-19 08:01:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:11,542 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2018-09-19 08:01:11,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 08:01:11,543 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2018-09-19 08:01:11,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:11,544 INFO L225 Difference]: With dead ends: 31 [2018-09-19 08:01:11,544 INFO L226 Difference]: Without dead ends: 26 [2018-09-19 08:01:11,545 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-09-19 08:01:11,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-09-19 08:01:11,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2018-09-19 08:01:11,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-19 08:01:11,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-09-19 08:01:11,550 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 18 [2018-09-19 08:01:11,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:11,551 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-09-19 08:01:11,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 08:01:11,551 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-09-19 08:01:11,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-19 08:01:11,552 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:11,552 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:11,553 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:11,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1751989068, now seen corresponding path program 1 times [2018-09-19 08:01:11,553 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:11,553 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-09-19 08:01:11,553 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [24], [28], [30], [35], [43], [46], [48], [54], [55], [56], [58] [2018-09-19 08:01:11,555 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:11,555 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:11,560 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 08:01:11,590 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 08:01:11,590 INFO L272 AbstractInterpreter]: Visited 17 different actions 64 times. Merged at 4 different actions 24 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2018-09-19 08:01:11,601 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 08:01:11,627 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 08:01:11,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:11 BoogieIcfgContainer [2018-09-19 08:01:11,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:11,628 INFO L168 Benchmark]: Toolchain (without parser) took 3076.75 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -656.9 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:11,631 INFO L168 Benchmark]: CDTParser took 0.27 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 08:01:11,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.93 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 08:01:11,632 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.18 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 08:01:11,634 INFO L168 Benchmark]: Boogie Preprocessor took 22.35 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 08:01:11,635 INFO L168 Benchmark]: RCFGBuilder took 389.43 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:11,637 INFO L168 Benchmark]: TraceAbstraction took 2317.35 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: 99.5 MB). Peak memory consumption was 99.5 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:11,645 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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. * CACSL2BoogieTranslator took 310.93 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 24.18 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 22.35 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 389.43 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2317.35 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: 99.5 MB). Peak memory consumption was 99.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: 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: [L15] int x=__VERIFIER_nondet_int(); [L16] int z=__VERIFIER_nondet_int(); [L17] COND FALSE !(!(x>-100)) [L18] COND FALSE !(!(x<200)) [L19] COND FALSE !(!(z>100)) [L20] COND FALSE !(!(z<200)) [L21] COND TRUE x<100 && z>100 [L23] _Bool tmp=__VERIFIER_nondet_bool(); [L24] COND FALSE !(\read(tmp)) [L27] x-- [L27] x-- [L28] z-- [L28] z-- [L21] COND FALSE !(x<100 && z>100) [L32] CALL __VERIFIER_assert(x>=100 || z<=100) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. UNKNOWN Result, 2.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 46 SDtfs, 89 SDslu, 112 SDs, 0 SdLazy, 143 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9618506493506493 AbsIntWeakeningRatio, 0.3181818181818182 AbsIntAvgWeakeningVarsNumRemoved, 0.2727272727272727 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 27 StatesRemovedByMinimization, 3 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/terminator_02_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-01-11-665.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/terminator_02_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-01-11-665.csv Received shutdown request...