java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:29:36,469 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:29:36,472 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:29:36,489 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:29:36,489 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:29:36,490 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:29:36,491 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:29:36,493 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:29:36,495 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:29:36,496 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:29:36,497 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:29:36,497 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:29:36,498 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:29:36,499 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:29:36,500 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:29:36,501 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:29:36,501 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:29:36,503 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:29:36,505 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:29:36,507 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:29:36,508 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:29:36,509 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:29:36,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 01:29:36,524 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 01:29:36,539 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:29:36,539 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:29:36,540 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:29:36,540 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:29:36,540 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:29:36,541 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:29:36,541 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:29:36,541 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:29:36,541 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:29:36,541 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:29:36,541 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:29:36,542 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:29:36,542 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:29:36,543 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:29:36,543 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:29:36,543 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:29:36,543 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:29:36,543 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:29:36,543 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:29:36,544 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:29:36,544 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:29:36,544 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:29:36,544 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:29:36,544 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:29:36,545 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:29:36,545 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:29:36,545 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:29:36,545 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:29:36,545 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:29:36,546 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:29:36,546 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:29:36,546 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:29:36,546 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:29:36,546 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:29:36,608 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:29:36,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:29:36,630 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:29:36,631 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:29:36,631 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:29:36,632 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i [2018-09-19 01:29:36,970 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce72edfb1/6566f1ac94dd4fdaa323aa6eadbef620/FLAG1c5f8368a [2018-09-19 01:29:37,085 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:29:37,086 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i [2018-09-19 01:29:37,092 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce72edfb1/6566f1ac94dd4fdaa323aa6eadbef620/FLAG1c5f8368a [2018-09-19 01:29:37,112 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce72edfb1/6566f1ac94dd4fdaa323aa6eadbef620 [2018-09-19 01:29:37,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:29:37,129 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:29:37,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:37,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:29:37,141 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:29:37,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:37" (1/1) ... [2018-09-19 01:29:37,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da07c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37, skipping insertion in model container [2018-09-19 01:29:37,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:37" (1/1) ... [2018-09-19 01:29:37,159 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:29:37,393 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:37,411 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:29:37,419 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:37,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37 WrapperNode [2018-09-19 01:29:37,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:37,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:37,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:29:37,435 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:29:37,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37" (1/1) ... [2018-09-19 01:29:37,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37" (1/1) ... [2018-09-19 01:29:37,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:37,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:29:37,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:29:37,459 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:29:37,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37" (1/1) ... [2018-09-19 01:29:37,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37" (1/1) ... [2018-09-19 01:29:37,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37" (1/1) ... [2018-09-19 01:29:37,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37" (1/1) ... [2018-09-19 01:29:37,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37" (1/1) ... [2018-09-19 01:29:37,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37" (1/1) ... [2018-09-19 01:29:37,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37" (1/1) ... [2018-09-19 01:29:37,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:29:37,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:29:37,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:29:37,483 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:29:37,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:29:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:29:37,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:29:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:29:37,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:29:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:29:37,539 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:29:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 01:29:37,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 01:29:37,918 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:29:37,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:37 BoogieIcfgContainer [2018-09-19 01:29:37,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:29:37,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:29:37,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:29:37,923 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:29:37,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:29:37" (1/3) ... [2018-09-19 01:29:37,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dac6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:37, skipping insertion in model container [2018-09-19 01:29:37,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:37" (2/3) ... [2018-09-19 01:29:37,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dac6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:37, skipping insertion in model container [2018-09-19 01:29:37,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:37" (3/3) ... [2018-09-19 01:29:37,927 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant_true-unreach-call_true-termination.c.i [2018-09-19 01:29:37,937 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:29:37,944 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:29:37,996 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:29:37,997 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:29:37,997 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:29:37,997 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:29:37,998 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:29:37,998 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:29:37,998 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:29:37,998 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:29:37,998 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:29:38,015 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-19 01:29:38,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 01:29:38,021 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:38,022 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:38,023 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:38,029 INFO L82 PathProgramCache]: Analyzing trace with hash 380045771, now seen corresponding path program 1 times [2018-09-19 01:29:38,032 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:38,033 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 01:29:38,035 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [24], [28], [35], [38], [40], [46], [47], [48], [50] [2018-09-19 01:29:38,095 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:38,095 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:38,177 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:38,179 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 01:29:38,219 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:38,296 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 20% of their original sizes. [2018-09-19 01:29:38,297 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:38,420 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:38,421 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:38,422 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-19 01:29:38,422 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:38,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-19 01:29:38,432 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-19 01:29:38,432 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-19 01:29:38,435 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2018-09-19 01:29:38,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:38,660 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2018-09-19 01:29:38,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 01:29:38,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-09-19 01:29:38,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:38,674 INFO L225 Difference]: With dead ends: 44 [2018-09-19 01:29:38,674 INFO L226 Difference]: Without dead ends: 19 [2018-09-19 01:29:38,678 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 01:29:38,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-19 01:29:38,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2018-09-19 01:29:38,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-19 01:29:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-19 01:29:38,723 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2018-09-19 01:29:38,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:38,724 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-19 01:29:38,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-19 01:29:38,724 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-19 01:29:38,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-19 01:29:38,725 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:38,725 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:38,726 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:38,726 INFO L82 PathProgramCache]: Analyzing trace with hash 137515447, now seen corresponding path program 1 times [2018-09-19 01:29:38,727 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:38,727 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-19 01:29:38,727 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [28], [35], [38], [40], [46], [47], [48], [50] [2018-09-19 01:29:38,729 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:38,729 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:38,755 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:38,755 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 01:29:38,779 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:38,827 INFO L232 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 43.33% of their original sizes. [2018-09-19 01:29:38,827 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:39,116 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:39,116 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:39,116 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 01:29:39,117 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:39,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 01:29:39,118 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 01:29:39,118 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-09-19 01:29:39,119 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 9 states. [2018-09-19 01:29:39,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:39,492 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-09-19 01:29:39,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-19 01:29:39,493 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2018-09-19 01:29:39,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:39,494 INFO L225 Difference]: With dead ends: 23 [2018-09-19 01:29:39,495 INFO L226 Difference]: Without dead ends: 17 [2018-09-19 01:29:39,497 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-19 01:29:39,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-19 01:29:39,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-09-19 01:29:39,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-19 01:29:39,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-09-19 01:29:39,504 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2018-09-19 01:29:39,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:39,505 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-09-19 01:29:39,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 01:29:39,505 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-09-19 01:29:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-19 01:29:39,506 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:39,506 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:39,506 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:39,507 INFO L82 PathProgramCache]: Analyzing trace with hash -431115791, now seen corresponding path program 1 times [2018-09-19 01:29:39,507 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:39,507 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-19 01:29:39,507 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [22], [28], [35], [38], [40], [46], [47], [48], [50] [2018-09-19 01:29:39,509 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:39,509 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:39,704 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 01:29:39,705 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 01:29:39,744 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 01:29:39,761 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 01:29:39,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:29:39 BoogieIcfgContainer [2018-09-19 01:29:39,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:29:39,762 INFO L168 Benchmark]: Toolchain (without parser) took 2636.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -710.0 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:39,764 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:29:39,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:39,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.40 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:29:39,766 INFO L168 Benchmark]: Boogie Preprocessor took 23.37 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 01:29:39,767 INFO L168 Benchmark]: RCFGBuilder took 436.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -805.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:39,768 INFO L168 Benchmark]: TraceAbstraction took 1841.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 85.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:39,772 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 302.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 23.40 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 23.37 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 436.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -805.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1841.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 85.3 MB). Peak memory consumption was 85.3 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, 1.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 55 SDslu, 61 SDs, 0 SdLazy, 53 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s 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, 0.4s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9400000000000002 AbsIntWeakeningRatio, 0.56 AbsIntAvgWeakeningVarsNumRemoved, 3.44 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_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_01-29-39-787.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_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_01-29-39-787.csv Received shutdown request...