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/cggmp2005b_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 17:20:22,295 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 17:20:22,298 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 17:20:22,310 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 17:20:22,311 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 17:20:22,312 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 17:20:22,313 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 17:20:22,315 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 17:20:22,317 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 17:20:22,318 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 17:20:22,322 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 17:20:22,323 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 17:20:22,325 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 17:20:22,326 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 17:20:22,330 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 17:20:22,330 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 17:20:22,331 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 17:20:22,333 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 17:20:22,335 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 17:20:22,337 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 17:20:22,338 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 17:20:22,339 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 17:20:22,342 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 17:20:22,351 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 [2018-09-15 17:20:22,366 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 17:20:22,366 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 17:20:22,367 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 17:20:22,368 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 17:20:22,368 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 17:20:22,368 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 17:20:22,368 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 17:20:22,368 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 17:20:22,369 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 17:20:22,369 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 17:20:22,369 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 17:20:22,369 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 17:20:22,370 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 17:20:22,370 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 17:20:22,370 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 17:20:22,371 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 17:20:22,371 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 17:20:22,371 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 17:20:22,371 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 17:20:22,371 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 17:20:22,372 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 17:20:22,372 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 17:20:22,372 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 17:20:22,372 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 17:20:22,373 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:20:22,373 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 17:20:22,373 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 17:20:22,373 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 17:20:22,373 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 17:20:22,374 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 17:20:22,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 17:20:22,374 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 17:20:22,374 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 17:20:22,375 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 17:20:22,419 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 17:20:22,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 17:20:22,437 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 17:20:22,438 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 17:20:22,439 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 17:20:22,440 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-09-15 17:20:22,802 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76487ef54/0fadc5c4f3cb4378b9fd3c3a53ac6efa/FLAG69cb04e20 [2018-09-15 17:20:22,941 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 17:20:22,942 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-09-15 17:20:22,949 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76487ef54/0fadc5c4f3cb4378b9fd3c3a53ac6efa/FLAG69cb04e20 [2018-09-15 17:20:22,968 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76487ef54/0fadc5c4f3cb4378b9fd3c3a53ac6efa [2018-09-15 17:20:22,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 17:20:22,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 17:20:22,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 17:20:22,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 17:20:22,994 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 17:20:22,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:20:22" (1/1) ... [2018-09-15 17:20:22,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750bfb3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:22, skipping insertion in model container [2018-09-15 17:20:22,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:20:22" (1/1) ... [2018-09-15 17:20:23,012 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 17:20:23,210 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:20:23,232 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 17:20:23,244 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:20:23,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23 WrapperNode [2018-09-15 17:20:23,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 17:20:23,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 17:20:23,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 17:20:23,263 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 17:20:23,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23" (1/1) ... [2018-09-15 17:20:23,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23" (1/1) ... [2018-09-15 17:20:23,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 17:20:23,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 17:20:23,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 17:20:23,288 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 17:20:23,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23" (1/1) ... [2018-09-15 17:20:23,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23" (1/1) ... [2018-09-15 17:20:23,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23" (1/1) ... [2018-09-15 17:20:23,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23" (1/1) ... [2018-09-15 17:20:23,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23" (1/1) ... [2018-09-15 17:20:23,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23" (1/1) ... [2018-09-15 17:20:23,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23" (1/1) ... [2018-09-15 17:20:23,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 17:20:23,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 17:20:23,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 17:20:23,311 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 17:20:23,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23" (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 [2018-09-15 17:20:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 17:20:23,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 17:20:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 17:20:23,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 17:20:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 17:20:23,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 17:20:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 17:20:23,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 17:20:23,726 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 17:20:23,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:20:23 BoogieIcfgContainer [2018-09-15 17:20:23,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 17:20:23,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 17:20:23,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 17:20:23,731 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 17:20:23,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 05:20:22" (1/3) ... [2018-09-15 17:20:23,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4590a4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:20:23, skipping insertion in model container [2018-09-15 17:20:23,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:23" (2/3) ... [2018-09-15 17:20:23,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4590a4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:20:23, skipping insertion in model container [2018-09-15 17:20:23,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:20:23" (3/3) ... [2018-09-15 17:20:23,736 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005b_true-unreach-call_true-termination.c.i [2018-09-15 17:20:23,748 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 17:20:23,758 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 17:20:23,843 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 17:20:23,844 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 17:20:23,844 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 17:20:23,844 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 17:20:23,844 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 17:20:23,845 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 17:20:23,845 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 17:20:23,845 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 17:20:23,845 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 17:20:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-09-15 17:20:23,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-15 17:20:23,870 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:23,871 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:23,872 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:23,877 INFO L82 PathProgramCache]: Analyzing trace with hash -557638975, now seen corresponding path program 1 times [2018-09-15 17:20:23,880 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:23,881 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-15 17:20:23,883 INFO L202 CegarAbsIntRunner]: [0], [4], [43], [48], [51], [53], [59], [60], [61], [63] [2018-09-15 17:20:23,938 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:23,938 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:23,982 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:23,983 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-15 17:20:23,996 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:24,038 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 66.67% of their original sizes. [2018-09-15 17:20:24,038 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:24,060 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:24,061 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:24,061 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 17:20:24,062 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:24,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 17:20:24,072 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 17:20:24,073 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:20:24,076 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-09-15 17:20:24,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:24,122 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2018-09-15 17:20:24,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 17:20:24,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-15 17:20:24,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:24,133 INFO L225 Difference]: With dead ends: 52 [2018-09-15 17:20:24,133 INFO L226 Difference]: Without dead ends: 23 [2018-09-15 17:20:24,137 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 [2018-09-15 17:20:24,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-15 17:20:24,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-09-15 17:20:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-15 17:20:24,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-09-15 17:20:24,176 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2018-09-15 17:20:24,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:24,176 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-09-15 17:20:24,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 17:20:24,177 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-09-15 17:20:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 17:20:24,178 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:24,178 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:24,178 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:24,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1155614924, now seen corresponding path program 1 times [2018-09-15 17:20:24,179 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:24,179 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 17:20:24,180 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [48], [51], [53], [59], [60], [61], [63] [2018-09-15 17:20:24,181 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:24,181 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:24,187 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:24,187 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-15 17:20:24,226 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:24,239 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 33.33% of their original sizes. [2018-09-15 17:20:24,240 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:24,264 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:24,264 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:24,264 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 17:20:24,265 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:24,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 17:20:24,266 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 17:20:24,266 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:20:24,266 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-09-15 17:20:24,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:24,343 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2018-09-15 17:20:24,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 17:20:24,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-15 17:20:24,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:24,344 INFO L225 Difference]: With dead ends: 24 [2018-09-15 17:20:24,344 INFO L226 Difference]: Without dead ends: 19 [2018-09-15 17:20:24,347 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:20:24,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-15 17:20:24,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-09-15 17:20:24,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-15 17:20:24,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-09-15 17:20:24,353 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 11 [2018-09-15 17:20:24,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:24,354 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-09-15 17:20:24,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 17:20:24,354 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-09-15 17:20:24,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-15 17:20:24,355 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:24,355 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:24,356 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:24,356 INFO L82 PathProgramCache]: Analyzing trace with hash -220474704, now seen corresponding path program 1 times [2018-09-15 17:20:24,357 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:24,357 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-09-15 17:20:24,357 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [18], [22], [28], [32], [36], [48], [51], [53], [59], [60], [61], [63] [2018-09-15 17:20:24,359 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:24,360 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:24,365 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:24,366 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-15 17:20:24,399 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:24,433 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 33.33% of their original sizes. [2018-09-15 17:20:24,434 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:24,520 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:24,521 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:24,521 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-15 17:20:24,521 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:24,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-15 17:20:24,522 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-15 17:20:24,522 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-15 17:20:24,523 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 5 states. [2018-09-15 17:20:24,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:24,708 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-09-15 17:20:24,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-15 17:20:24,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-09-15 17:20:24,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:24,711 INFO L225 Difference]: With dead ends: 33 [2018-09-15 17:20:24,711 INFO L226 Difference]: Without dead ends: 21 [2018-09-15 17:20:24,711 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-15 17:20:24,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-09-15 17:20:24,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-09-15 17:20:24,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-09-15 17:20:24,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-09-15 17:20:24,718 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2018-09-15 17:20:24,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:24,718 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-09-15 17:20:24,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-15 17:20:24,719 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-09-15 17:20:24,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-15 17:20:24,719 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:24,720 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:24,720 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:24,720 INFO L82 PathProgramCache]: Analyzing trace with hash 260416874, now seen corresponding path program 1 times [2018-09-15 17:20:24,720 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:24,721 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-15 17:20:24,721 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [18], [22], [24], [28], [32], [36], [48], [51], [53], [59], [60], [61], [63] [2018-09-15 17:20:24,723 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:24,723 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:24,808 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 17:20:24,809 INFO L272 AbstractInterpreter]: Visited 18 different actions 246 times. Merged at 8 different actions 166 times. Widened at 4 different actions 64 times. Found 16 fixpoints after 3 different actions. Largest state had 3 variables. [2018-09-15 17:20:24,848 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 17:20:24,865 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 17:20:24,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 05:20:24 BoogieIcfgContainer [2018-09-15 17:20:24,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 17:20:24,866 INFO L168 Benchmark]: Toolchain (without parser) took 1885.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -722.3 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:24,868 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-09-15 17:20:24,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.30 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. [2018-09-15 17:20:24,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.81 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. [2018-09-15 17:20:24,871 INFO L168 Benchmark]: Boogie Preprocessor took 22.53 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. [2018-09-15 17:20:24,872 INFO L168 Benchmark]: RCFGBuilder took 416.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:24,873 INFO L168 Benchmark]: TraceAbstraction took 1137.62 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: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:24,878 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 277.30 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 24.81 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.53 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 416.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1137.62 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: 47.9 MB). Peak memory consumption was 47.9 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,k; [L12] i = 0 [L13] k = 9 [L14] j = -100 [L15] COND TRUE i <= 100 [L16] i = i + 1 [L17] COND TRUE j < 20 [L18] j = i + j [L17] COND FALSE !(j < 20) [L20] k = 4 [L21] COND FALSE !(k <= 3) [L15] COND FALSE !(i <= 100) [L25] CALL __VERIFIER_assert(k == 4) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. UNKNOWN Result, 1.0s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 62 SDtfs, 8 SDslu, 74 SDs, 0 SdLazy, 27 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.4444444444444444 AbsIntAvgWeakeningVarsNumRemoved, 2.6666666666666665 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 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/cggmp2005b_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_17-20-24-897.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005b_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_17-20-24-897.csv Received shutdown request...