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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/seq_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:36:23,243 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:36:23,245 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:36:23,257 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:36:23,258 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:36:23,259 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:36:23,260 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:36:23,262 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:36:23,264 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:36:23,265 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:36:23,266 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:36:23,266 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:36:23,267 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:36:23,268 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:36:23,270 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:36:23,270 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:36:23,271 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:36:23,273 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:36:23,275 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:36:23,277 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:36:23,278 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:36:23,280 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:36:23,282 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 11:36:23,291 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-19 11:36:23,318 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:36:23,318 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:36:23,319 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:36:23,320 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:36:23,320 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:36:23,320 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:36:23,320 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:36:23,321 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 11:36:23,321 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 11:36:23,321 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:36:23,321 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:36:23,321 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:36:23,322 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:36:23,322 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:36:23,323 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:36:23,323 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:36:23,323 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:36:23,323 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:36:23,323 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:36:23,323 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:36:23,324 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:36:23,324 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:36:23,324 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:36:23,324 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:36:23,325 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:36:23,325 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:36:23,325 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:36:23,325 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:36:23,325 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:36:23,326 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:36:23,326 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:36:23,326 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:36:23,326 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:36:23,326 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:36:23,375 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:36:23,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:36:23,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:36:23,394 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:36:23,395 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:36:23,395 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/seq_true-unreach-call_true-termination.i [2018-09-19 11:36:23,777 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3802f6bc4/b717e72ff41b47d78785bb6a9e464647/FLAG5ded814ba [2018-09-19 11:36:23,972 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:36:23,973 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/seq_true-unreach-call_true-termination.i [2018-09-19 11:36:23,979 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3802f6bc4/b717e72ff41b47d78785bb6a9e464647/FLAG5ded814ba [2018-09-19 11:36:23,997 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3802f6bc4/b717e72ff41b47d78785bb6a9e464647 [2018-09-19 11:36:24,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:36:24,012 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:36:24,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:36:24,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:36:24,021 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:36:24,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:36:23" (1/1) ... [2018-09-19 11:36:24,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a651507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24, skipping insertion in model container [2018-09-19 11:36:24,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:36:23" (1/1) ... [2018-09-19 11:36:24,038 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:36:24,252 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:36:24,271 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:36:24,278 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:36:24,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24 WrapperNode [2018-09-19 11:36:24,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:36:24,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:36:24,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:36:24,294 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:36:24,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24" (1/1) ... [2018-09-19 11:36:24,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24" (1/1) ... [2018-09-19 11:36:24,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:36:24,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:36:24,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:36:24,318 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:36:24,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24" (1/1) ... [2018-09-19 11:36:24,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24" (1/1) ... [2018-09-19 11:36:24,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24" (1/1) ... [2018-09-19 11:36:24,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24" (1/1) ... [2018-09-19 11:36:24,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24" (1/1) ... [2018-09-19 11:36:24,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24" (1/1) ... [2018-09-19 11:36:24,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24" (1/1) ... [2018-09-19 11:36:24,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:36:24,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:36:24,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:36:24,342 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:36:24,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24" (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 11:36:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:36:24,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:36:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:36:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:36:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:36:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:36:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 11:36:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 11:36:24,829 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:36:24,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:36:24 BoogieIcfgContainer [2018-09-19 11:36:24,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:36:24,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:36:24,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:36:24,844 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:36:24,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:36:23" (1/3) ... [2018-09-19 11:36:24,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5dad32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:36:24, skipping insertion in model container [2018-09-19 11:36:24,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:36:24" (2/3) ... [2018-09-19 11:36:24,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5dad32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:36:24, skipping insertion in model container [2018-09-19 11:36:24,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:36:24" (3/3) ... [2018-09-19 11:36:24,848 INFO L112 eAbstractionObserver]: Analyzing ICFG seq_true-unreach-call_true-termination.i [2018-09-19 11:36:24,858 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:36:24,866 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:36:24,914 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:36:24,915 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:36:24,915 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:36:24,915 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:36:24,916 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:36:24,916 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:36:24,916 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:36:24,916 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:36:24,916 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:36:24,936 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-09-19 11:36:24,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-19 11:36:24,943 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:36:24,945 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:36:24,946 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:36:24,954 INFO L82 PathProgramCache]: Analyzing trace with hash 301890663, now seen corresponding path program 1 times [2018-09-19 11:36:24,957 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:36:24,958 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-19 11:36:24,960 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [24], [26], [38], [40], [44], [50], [57], [60], [62], [68], [69], [70], [72] [2018-09-19 11:36:25,001 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 11:36:25,001 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:36:25,087 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:36:25,088 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-09-19 11:36:25,113 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:36:25,171 INFO L232 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 25% of their original sizes. [2018-09-19 11:36:25,173 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:36:25,263 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:36:25,264 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:36:25,265 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-19 11:36:25,265 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:36:25,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-19 11:36:25,278 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-19 11:36:25,279 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-19 11:36:25,281 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2018-09-19 11:36:25,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:36:25,471 INFO L93 Difference]: Finished difference Result 61 states and 82 transitions. [2018-09-19 11:36:25,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 11:36:25,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-09-19 11:36:25,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:36:25,482 INFO L225 Difference]: With dead ends: 61 [2018-09-19 11:36:25,482 INFO L226 Difference]: Without dead ends: 33 [2018-09-19 11:36:25,486 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-19 11:36:25,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-09-19 11:36:25,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 23. [2018-09-19 11:36:25,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-09-19 11:36:25,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-09-19 11:36:25,532 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 17 [2018-09-19 11:36:25,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:36:25,532 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-09-19 11:36:25,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-19 11:36:25,533 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-09-19 11:36:25,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-19 11:36:25,534 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:36:25,534 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:36:25,536 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:36:25,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1130037681, now seen corresponding path program 1 times [2018-09-19 11:36:25,537 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:36:25,538 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-19 11:36:25,538 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [26], [30], [34], [40], [44], [50], [57], [60], [62], [68], [69], [70], [72] [2018-09-19 11:36:25,540 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 11:36:25,540 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:36:25,559 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:36:25,559 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-09-19 11:36:25,598 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:36:25,633 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 28.61% of their original sizes. [2018-09-19 11:36:25,634 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:36:25,861 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:36:25,861 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:36:25,862 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 11:36:25,862 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:36:25,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 11:36:25,863 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 11:36:25,864 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-09-19 11:36:25,864 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 9 states. [2018-09-19 11:36:26,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:36:26,170 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-09-19 11:36:26,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-19 11:36:26,171 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-09-19 11:36:26,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:36:26,172 INFO L225 Difference]: With dead ends: 41 [2018-09-19 11:36:26,172 INFO L226 Difference]: Without dead ends: 28 [2018-09-19 11:36:26,174 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:36:26,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-09-19 11:36:26,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-09-19 11:36:26,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-09-19 11:36:26,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2018-09-19 11:36:26,188 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 19 [2018-09-19 11:36:26,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:36:26,189 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2018-09-19 11:36:26,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 11:36:26,189 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2018-09-19 11:36:26,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-19 11:36:26,191 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:36:26,192 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:36:26,192 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:36:26,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1499928661, now seen corresponding path program 1 times [2018-09-19 11:36:26,193 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:36:26,193 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-09-19 11:36:26,193 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [26], [30], [34], [36], [40], [44], [50], [57], [60], [62], [68], [69], [70], [72] [2018-09-19 11:36:26,196 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 11:36:26,196 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:36:26,287 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 11:36:26,288 INFO L272 AbstractInterpreter]: Visited 20 different actions 80 times. Merged at 6 different actions 38 times. Widened at 2 different actions 5 times. Found 2 fixpoints after 2 different actions. Largest state had 10 variables. [2018-09-19 11:36:26,298 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 11:36:26,318 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 11:36:26,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:36:26 BoogieIcfgContainer [2018-09-19 11:36:26,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:36:26,319 INFO L168 Benchmark]: Toolchain (without parser) took 2309.66 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: -724.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:26,322 INFO L168 Benchmark]: CDTParser took 0.22 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 11:36:26,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.08 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 11:36:26,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.52 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 11:36:26,324 INFO L168 Benchmark]: Boogie Preprocessor took 24.24 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 11:36:26,325 INFO L168 Benchmark]: RCFGBuilder took 487.69 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: -806.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:26,326 INFO L168 Benchmark]: TraceAbstraction took 1482.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 7.1 GB. [2018-09-19 11:36:26,331 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 279.08 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 23.52 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 24.24 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 487.69 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: -806.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1482.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 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 n0, n1; [L12] int i0 = 0; [L13] int k = 0; [L14] n0 = __VERIFIER_nondet_int() [L15] n1 = __VERIFIER_nondet_int() [L16] COND FALSE !(!(-1000000 <= n0 && n0 < 1000000)) [L17] COND FALSE !(!(-1000000 <= n1 && n1 < 1000000)) [L18] COND FALSE !(i0 < n0) [L22] int i1 = 0; [L23] COND TRUE i1 < n1 [L24] i1++ [L24] i1++ [L25] k++ [L25] k++ [L23] COND FALSE !(i1 < n1) [L27] int j1 = 0; [L28] COND TRUE j1 < n0 + n1 [L29] CALL __VERIFIER_assert(k > 0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. UNKNOWN Result, 1.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 43 SDslu, 94 SDs, 0 SdLazy, 63 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9867647058823529 AbsIntWeakeningRatio, 0.47058823529411764 AbsIntAvgWeakeningVarsNumRemoved, 0.35294117647058826 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 10 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/seq_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-36-26-354.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/seq_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-36-26-354.csv Received shutdown request...