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/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:40,755 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:40,757 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:40,771 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:40,771 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:40,772 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:40,774 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:40,775 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:40,777 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:40,778 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:40,779 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:40,779 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:40,780 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:40,782 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:40,783 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:40,784 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:40,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:40,789 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:40,801 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:40,806 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:40,807 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:40,812 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:40,817 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 08:01:40,831 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 08:01:40,859 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:40,860 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:40,861 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:40,861 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:40,861 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:40,861 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:40,862 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:40,862 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:40,862 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:40,862 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:40,862 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:40,863 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:40,863 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:40,864 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:40,864 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:40,864 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:40,865 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:40,866 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:40,866 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:40,866 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:40,866 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:40,866 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:40,867 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:40,867 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:40,867 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:40,868 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:40,868 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:40,868 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:40,868 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:40,869 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:40,869 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:40,869 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:40,869 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:40,869 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:40,870 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:40,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:40,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:40,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:40,960 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:40,960 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:40,961 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i [2018-09-19 08:01:41,329 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01130478/bc65b4eaa31345e498d83ea8e48dc5ed/FLAG71c750f26 [2018-09-19 08:01:41,483 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:41,483 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i [2018-09-19 08:01:41,490 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01130478/bc65b4eaa31345e498d83ea8e48dc5ed/FLAG71c750f26 [2018-09-19 08:01:41,506 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01130478/bc65b4eaa31345e498d83ea8e48dc5ed [2018-09-19 08:01:41,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:41,519 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:41,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:41,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:41,527 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:41,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1613605b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41, skipping insertion in model container [2018-09-19 08:01:41,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,544 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:41,747 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:41,764 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:41,773 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:41,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41 WrapperNode [2018-09-19 08:01:41,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:41,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:41,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:41,792 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:41,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:41,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:41,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:41,814 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:41,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (1/1) ... [2018-09-19 08:01:41,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:41,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:41,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:41,838 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:41,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (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 08:01:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:41,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:42,269 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:42,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:42 BoogieIcfgContainer [2018-09-19 08:01:42,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:42,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:42,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:42,287 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:42,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:41" (1/3) ... [2018-09-19 08:01:42,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13789f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:42, skipping insertion in model container [2018-09-19 08:01:42,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:41" (2/3) ... [2018-09-19 08:01:42,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13789f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:42, skipping insertion in model container [2018-09-19 08:01:42,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:42" (3/3) ... [2018-09-19 08:01:42,291 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant_true-unreach-call_true-termination.c.i [2018-09-19 08:01:42,302 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:42,309 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:42,368 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:42,369 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:42,369 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:42,369 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:42,369 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:42,369 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:42,370 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:42,370 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:42,370 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:42,392 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-19 08:01:42,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 08:01:42,398 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:42,399 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:42,400 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:42,406 INFO L82 PathProgramCache]: Analyzing trace with hash 380045771, now seen corresponding path program 1 times [2018-09-19 08:01:42,408 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:42,409 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 08:01:42,411 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [24], [28], [35], [38], [40], [46], [47], [48], [50] [2018-09-19 08:01:42,466 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:42,466 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:42,512 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:42,513 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-19 08:01:42,529 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:42,601 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 20% of their original sizes. [2018-09-19 08:01:42,601 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:42,743 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:42,745 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:42,745 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-19 08:01:42,746 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:42,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-19 08:01:42,757 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-19 08:01:42,758 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-19 08:01:42,760 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2018-09-19 08:01:42,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:42,950 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2018-09-19 08:01:42,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 08:01:42,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-09-19 08:01:42,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:42,961 INFO L225 Difference]: With dead ends: 44 [2018-09-19 08:01:42,961 INFO L226 Difference]: Without dead ends: 19 [2018-09-19 08:01:42,964 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-19 08:01:42,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-19 08:01:43,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2018-09-19 08:01:43,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-19 08:01:43,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-19 08:01:43,009 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2018-09-19 08:01:43,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:43,010 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-19 08:01:43,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-19 08:01:43,010 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-19 08:01:43,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-19 08:01:43,011 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:43,011 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:43,015 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:43,015 INFO L82 PathProgramCache]: Analyzing trace with hash 137515447, now seen corresponding path program 1 times [2018-09-19 08:01:43,015 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:43,016 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-19 08:01:43,016 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [28], [35], [38], [40], [46], [47], [48], [50] [2018-09-19 08:01:43,018 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:43,018 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:43,045 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:43,045 INFO L272 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-19 08:01:43,059 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:43,097 INFO L232 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 43.33% of their original sizes. [2018-09-19 08:01:43,098 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:43,509 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:43,509 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:43,510 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 08:01:43,510 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:43,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 08:01:43,511 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 08:01:43,511 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-09-19 08:01:43,511 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 9 states. [2018-09-19 08:01:43,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:43,790 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-09-19 08:01:43,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-19 08:01:43,790 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2018-09-19 08:01:43,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:43,792 INFO L225 Difference]: With dead ends: 23 [2018-09-19 08:01:43,792 INFO L226 Difference]: Without dead ends: 17 [2018-09-19 08:01:43,794 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-19 08:01:43,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-19 08:01:43,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-09-19 08:01:43,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-19 08:01:43,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-09-19 08:01:43,802 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2018-09-19 08:01:43,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:43,802 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-09-19 08:01:43,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 08:01:43,803 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-09-19 08:01:43,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-19 08:01:43,803 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:43,804 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:43,804 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:43,804 INFO L82 PathProgramCache]: Analyzing trace with hash -431115791, now seen corresponding path program 1 times [2018-09-19 08:01:43,805 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:43,805 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-19 08:01:43,805 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [22], [28], [35], [38], [40], [46], [47], [48], [50] [2018-09-19 08:01:43,807 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:43,807 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:43,900 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 08:01:43,900 INFO L272 AbstractInterpreter]: Visited 15 different actions 134 times. Merged at 4 different actions 60 times. Widened at 1 different actions 11 times. Found 1 fixpoints after 1 different actions. Largest state had 9 variables. [2018-09-19 08:01:43,941 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 08:01:43,961 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 08:01:43,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:43 BoogieIcfgContainer [2018-09-19 08:01:43,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:43,963 INFO L168 Benchmark]: Toolchain (without parser) took 2446.54 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -660.7 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:43,965 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 08:01:43,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.03 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 08:01:43,968 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.29 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 08:01:43,969 INFO L168 Benchmark]: Boogie Preprocessor took 23.27 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 08:01:43,970 INFO L168 Benchmark]: RCFGBuilder took 433.34 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -758.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:43,971 INFO L168 Benchmark]: TraceAbstraction took 1690.28 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: 86.7 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:43,979 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 271.03 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 22.29 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 23.27 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. * RCFGBuilder took 433.34 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -758.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1690.28 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: 86.7 MB). Peak memory consumption was 86.7 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: [L11] int i, j; [L12] i = __VERIFIER_nondet_int() [L13] j = __VERIFIER_nondet_int() [L14] COND FALSE !(!(i >= 0 && i <= 1000000)) [L15] COND FALSE !(!(j >= 0)) [L16] int x = i; [L17] int y = j; [L18] int z = 0; [L19] COND TRUE x != 0 [L20] x -- [L20] x -- [L21] y -= 2 [L22] z ++ [L22] z ++ [L19] COND FALSE !(x != 0) [L24] COND TRUE i == j [L25] CALL __VERIFIER_assert(y == -z) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. UNKNOWN Result, 1.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 55 SDslu, 61 SDs, 0 SdLazy, 53 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9400000000000002 AbsIntWeakeningRatio, 0.56 AbsIntAvgWeakeningVarsNumRemoved, 3.36 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 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/jm2006_variant_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-01-43-993.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jm2006_variant_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-01-43-993.csv Received shutdown request...