java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_3_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 05:01:09,840 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 05:01:09,842 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 05:01:09,854 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 05:01:09,855 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 05:01:09,856 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 05:01:09,857 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 05:01:09,859 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 05:01:09,861 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 05:01:09,862 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 05:01:09,863 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 05:01:09,863 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 05:01:09,864 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 05:01:09,865 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 05:01:09,866 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 05:01:09,867 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 05:01:09,868 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 05:01:09,870 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 05:01:09,872 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 05:01:09,874 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 05:01:09,876 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 05:01:09,877 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 05:01:09,882 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 05:01:09,899 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 05:01:09,932 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 05:01:09,933 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 05:01:09,934 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 05:01:09,935 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 05:01:09,935 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 05:01:09,935 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 05:01:09,936 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 05:01:09,936 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 05:01:09,936 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 05:01:09,936 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-19 05:01:09,937 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 05:01:09,937 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 05:01:09,937 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 05:01:09,938 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 05:01:09,938 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 05:01:09,938 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 05:01:09,939 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 05:01:09,939 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 05:01:09,940 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 05:01:09,940 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 05:01:09,940 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 05:01:09,940 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 05:01:09,940 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 05:01:09,941 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 05:01:09,941 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 05:01:09,941 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 05:01:09,941 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 05:01:09,942 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 05:01:09,942 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 05:01:09,942 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 05:01:09,942 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 05:01:09,943 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 05:01:09,943 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 05:01:09,943 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 05:01:09,943 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 05:01:10,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 05:01:10,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 05:01:10,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 05:01:10,034 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 05:01:10,035 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 05:01:10,036 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_3_true-unreach-call_false-termination.i [2018-09-19 05:01:10,405 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6976d63e5/e873a037ee964439b2355d781fbdb9f2/FLAG74bfb869e [2018-09-19 05:01:10,549 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 05:01:10,550 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3_true-unreach-call_false-termination.i [2018-09-19 05:01:10,556 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6976d63e5/e873a037ee964439b2355d781fbdb9f2/FLAG74bfb869e [2018-09-19 05:01:10,574 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6976d63e5/e873a037ee964439b2355d781fbdb9f2 [2018-09-19 05:01:10,588 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 05:01:10,591 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 05:01:10,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:10,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 05:01:10,600 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 05:01:10,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:10" (1/1) ... [2018-09-19 05:01:10,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627e0d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10, skipping insertion in model container [2018-09-19 05:01:10,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:10" (1/1) ... [2018-09-19 05:01:10,618 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 05:01:10,802 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:10,825 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 05:01:10,829 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:10,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10 WrapperNode [2018-09-19 05:01:10,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:10,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:10,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 05:01:10,843 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 05:01:10,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10" (1/1) ... [2018-09-19 05:01:10,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10" (1/1) ... [2018-09-19 05:01:10,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:10,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 05:01:10,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 05:01:10,869 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 05:01:10,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10" (1/1) ... [2018-09-19 05:01:10,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10" (1/1) ... [2018-09-19 05:01:10,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10" (1/1) ... [2018-09-19 05:01:10,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10" (1/1) ... [2018-09-19 05:01:10,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10" (1/1) ... [2018-09-19 05:01:10,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10" (1/1) ... [2018-09-19 05:01:10,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10" (1/1) ... [2018-09-19 05:01:10,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 05:01:10,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 05:01:10,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 05:01:10,893 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 05:01:10,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10" (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 05:01:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 05:01:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 05:01:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2018-09-19 05:01:10,973 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2018-09-19 05:01:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 05:01:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 05:01:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 05:01:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 05:01:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 05:01:10,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 05:01:11,300 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 05:01:11,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:11 BoogieIcfgContainer [2018-09-19 05:01:11,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 05:01:11,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 05:01:11,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 05:01:11,307 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 05:01:11,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 05:01:10" (1/3) ... [2018-09-19 05:01:11,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98bf19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:11, skipping insertion in model container [2018-09-19 05:01:11,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:10" (2/3) ... [2018-09-19 05:01:11,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98bf19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:11, skipping insertion in model container [2018-09-19 05:01:11,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:11" (3/3) ... [2018-09-19 05:01:11,311 INFO L112 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_3_true-unreach-call_false-termination.i [2018-09-19 05:01:11,333 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 05:01:11,351 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 05:01:11,458 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 05:01:11,458 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 05:01:11,459 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 05:01:11,459 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 05:01:11,459 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 05:01:11,459 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 05:01:11,459 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 05:01:11,459 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 05:01:11,460 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 05:01:11,482 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-09-19 05:01:11,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-19 05:01:11,489 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:11,491 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:11,494 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:11,501 INFO L82 PathProgramCache]: Analyzing trace with hash -337279170, now seen corresponding path program 1 times [2018-09-19 05:01:11,503 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:11,504 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-19 05:01:11,506 INFO L202 CegarAbsIntRunner]: [0], [1], [30], [35], [38], [40], [46], [47], [48], [54] [2018-09-19 05:01:11,542 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:11,542 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:11,611 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:11,613 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 05:01:11,661 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:11,715 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-19 05:01:11,715 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:11,740 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:11,741 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:11,741 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 05:01:11,742 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:11,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 05:01:11,752 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 05:01:11,752 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 05:01:11,755 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-09-19 05:01:11,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:11,783 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2018-09-19 05:01:11,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 05:01:11,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-19 05:01:11,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:11,793 INFO L225 Difference]: With dead ends: 39 [2018-09-19 05:01:11,794 INFO L226 Difference]: Without dead ends: 19 [2018-09-19 05:01:11,798 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 05:01:11,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-19 05:01:11,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-09-19 05:01:11,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-19 05:01:11,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-09-19 05:01:11,847 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2018-09-19 05:01:11,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:11,848 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-09-19 05:01:11,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 05:01:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-09-19 05:01:11,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-19 05:01:11,849 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:11,849 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:11,850 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:11,850 INFO L82 PathProgramCache]: Analyzing trace with hash 672764537, now seen corresponding path program 1 times [2018-09-19 05:01:11,851 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:11,851 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-19 05:01:11,851 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [10], [14], [20], [26], [35], [38], [40], [46], [47], [48], [50], [51], [52] [2018-09-19 05:01:11,853 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:11,854 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:11,878 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 05:01:11,879 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-19 05:01:11,913 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 05:01:11,930 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 05:01:11,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 05:01:11 BoogieIcfgContainer [2018-09-19 05:01:11,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 05:01:11,931 INFO L168 Benchmark]: Toolchain (without parser) took 1342.53 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -798.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:11,933 INFO L168 Benchmark]: CDTParser took 0.23 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 05:01:11,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.22 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 05:01:11,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.94 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 05:01:11,935 INFO L168 Benchmark]: Boogie Preprocessor took 23.95 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 05:01:11,936 INFO L168 Benchmark]: RCFGBuilder took 407.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -839.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:11,937 INFO L168 Benchmark]: TraceAbstraction took 628.60 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:11,942 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 250.22 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 24.94 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.95 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 407.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -839.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 628.60 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 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: [L10] int x=0; [L24] COND TRUE 1 [L26] CALL eval() [L14] COND TRUE 1 [L15] RET x=0 [L26] eval() [L27] CALL __VERIFIER_assert(x==0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNKNOWN Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 0 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 2 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.3333333333333333 AbsIntAvgWeakeningVarsNumRemoved, 0.1111111111111111 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/while_infinite_loop_3_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_05-01-11-960.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/while_infinite_loop_3_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_05-01-11-960.csv Received shutdown request...