java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:46:36,318 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:46:36,320 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:46:36,336 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:46:36,336 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:46:36,338 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:46:36,340 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:46:36,343 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:46:36,345 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:46:36,352 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:46:36,353 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:46:36,353 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:46:36,357 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:46:36,358 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:46:36,361 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:46:36,362 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:46:36,363 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:46:36,364 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:46:36,366 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:46:36,368 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:46:36,369 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:46:36,370 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:46:36,373 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 15:46:36,373 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 15:46:36,374 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 15:46:36,375 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 15:46:36,376 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 15:46:36,379 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 15:46:36,380 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 15:46:36,382 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 15:46:36,383 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 15:46:36,384 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-22 15:46:36,390 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-22 15:46:36,409 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:46:36,409 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:46:36,410 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:46:36,410 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:46:36,411 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:46:36,411 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:46:36,411 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:46:36,411 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:46:36,411 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:46:36,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:46:36,412 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:46:36,412 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:46:36,412 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:46:36,412 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:46:36,412 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:46:36,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:46:36,413 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:46:36,413 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:46:36,413 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:46:36,413 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:46:36,414 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:46:36,414 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:46:36,414 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:46:36,414 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:46:36,414 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:46:36,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:46:36,415 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:46:36,415 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:46:36,461 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:46:36,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:46:36,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:46:36,486 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:46:36,487 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:46:36,487 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-10-22 15:46:36,549 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4d4863803/9030cae2564545ccaafedd024b4c4521/FLAG03cd06059 [2018-10-22 15:46:37,013 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:46:37,014 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-10-22 15:46:37,021 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4d4863803/9030cae2564545ccaafedd024b4c4521/FLAG03cd06059 [2018-10-22 15:46:37,041 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4d4863803/9030cae2564545ccaafedd024b4c4521 [2018-10-22 15:46:37,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:46:37,056 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:46:37,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:46:37,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:46:37,064 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:46:37,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:46:37" (1/1) ... [2018-10-22 15:46:37,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77296090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37, skipping insertion in model container [2018-10-22 15:46:37,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:46:37" (1/1) ... [2018-10-22 15:46:37,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:46:37,117 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:46:37,364 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:46:37,370 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:46:37,410 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:46:37,429 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:46:37,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37 WrapperNode [2018-10-22 15:46:37,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:46:37,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:46:37,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:46:37,431 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:46:37,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37" (1/1) ... [2018-10-22 15:46:37,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37" (1/1) ... [2018-10-22 15:46:37,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:46:37,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:46:37,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:46:37,477 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:46:37,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37" (1/1) ... [2018-10-22 15:46:37,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37" (1/1) ... [2018-10-22 15:46:37,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37" (1/1) ... [2018-10-22 15:46:37,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37" (1/1) ... [2018-10-22 15:46:37,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37" (1/1) ... [2018-10-22 15:46:37,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37" (1/1) ... [2018-10-22 15:46:37,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37" (1/1) ... [2018-10-22 15:46:37,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:46:37,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:46:37,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:46:37,524 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:46:37,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:46:37,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:46:37,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:46:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 15:46:37,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 15:46:38,162 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:46:38,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:46:38 BoogieIcfgContainer [2018-10-22 15:46:38,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:46:38,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:46:38,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:46:38,167 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:46:38,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:46:37" (1/3) ... [2018-10-22 15:46:38,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f000068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:46:38, skipping insertion in model container [2018-10-22 15:46:38,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:46:37" (2/3) ... [2018-10-22 15:46:38,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f000068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:46:38, skipping insertion in model container [2018-10-22 15:46:38,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:46:38" (3/3) ... [2018-10-22 15:46:38,171 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute_true-unreach-call_true-termination.i [2018-10-22 15:46:38,182 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:46:38,190 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:46:38,211 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:46:38,260 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:46:38,261 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:46:38,261 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:46:38,261 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:46:38,261 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:46:38,261 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:46:38,262 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:46:38,262 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:46:38,262 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:46:38,283 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-10-22 15:46:38,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 15:46:38,288 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:38,289 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:38,292 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:38,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:38,297 INFO L82 PathProgramCache]: Analyzing trace with hash 92709358, now seen corresponding path program 1 times [2018-10-22 15:46:38,299 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:38,300 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:38,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:38,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:38,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:38,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:46:38,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-22 15:46:38,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 15:46:38,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 15:46:38,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:46:38,537 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 5 states. [2018-10-22 15:46:39,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:39,345 INFO L93 Difference]: Finished difference Result 112 states and 206 transitions. [2018-10-22 15:46:39,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 15:46:39,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-10-22 15:46:39,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:39,359 INFO L225 Difference]: With dead ends: 112 [2018-10-22 15:46:39,359 INFO L226 Difference]: Without dead ends: 63 [2018-10-22 15:46:39,370 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-22 15:46:39,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-22 15:46:39,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 56. [2018-10-22 15:46:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-10-22 15:46:39,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2018-10-22 15:46:39,429 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 13 [2018-10-22 15:46:39,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:39,430 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2018-10-22 15:46:39,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 15:46:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2018-10-22 15:46:39,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-22 15:46:39,432 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:39,432 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:39,433 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:39,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:39,433 INFO L82 PathProgramCache]: Analyzing trace with hash -378930512, now seen corresponding path program 1 times [2018-10-22 15:46:39,433 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:39,434 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:39,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:39,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:39,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:39,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:39,574 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:39,574 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:39,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:39,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:39,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:39,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:46:39,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-10-22 15:46:39,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-22 15:46:39,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-22 15:46:39,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-10-22 15:46:39,814 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 9 states. [2018-10-22 15:46:40,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:40,746 INFO L93 Difference]: Finished difference Result 62 states and 84 transitions. [2018-10-22 15:46:40,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-22 15:46:40,747 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-10-22 15:46:40,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:40,750 INFO L225 Difference]: With dead ends: 62 [2018-10-22 15:46:40,750 INFO L226 Difference]: Without dead ends: 60 [2018-10-22 15:46:40,752 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-10-22 15:46:40,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-10-22 15:46:40,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-10-22 15:46:40,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-10-22 15:46:40,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 82 transitions. [2018-10-22 15:46:40,767 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 82 transitions. Word has length 18 [2018-10-22 15:46:40,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:40,767 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 82 transitions. [2018-10-22 15:46:40,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-22 15:46:40,768 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2018-10-22 15:46:40,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-22 15:46:40,770 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:40,770 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:40,770 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:40,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:40,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1244184887, now seen corresponding path program 1 times [2018-10-22 15:46:40,771 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:40,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:40,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:40,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:40,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-10-22 15:46:40,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:46:40,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 15:46:40,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 15:46:40,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 15:46:40,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:46:40,834 INFO L87 Difference]: Start difference. First operand 60 states and 82 transitions. Second operand 3 states. [2018-10-22 15:46:40,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:40,899 INFO L93 Difference]: Finished difference Result 90 states and 123 transitions. [2018-10-22 15:46:40,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 15:46:40,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-10-22 15:46:40,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:40,902 INFO L225 Difference]: With dead ends: 90 [2018-10-22 15:46:40,902 INFO L226 Difference]: Without dead ends: 60 [2018-10-22 15:46:40,903 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:46:40,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-10-22 15:46:40,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-10-22 15:46:40,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-10-22 15:46:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2018-10-22 15:46:40,916 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 80 transitions. Word has length 48 [2018-10-22 15:46:40,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:40,917 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 80 transitions. [2018-10-22 15:46:40,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 15:46:40,917 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2018-10-22 15:46:40,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-22 15:46:40,919 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:40,919 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:40,919 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:40,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:40,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1162632966, now seen corresponding path program 1 times [2018-10-22 15:46:40,920 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:40,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:40,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:40,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:40,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 13 proven. 23 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-10-22 15:46:41,079 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:41,079 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:41,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:41,118 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:41,289 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-10-22 15:46:41,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:46:41,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-10-22 15:46:41,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-22 15:46:41,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-22 15:46:41,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-22 15:46:41,325 INFO L87 Difference]: Start difference. First operand 60 states and 80 transitions. Second operand 9 states. [2018-10-22 15:46:41,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:41,837 INFO L93 Difference]: Finished difference Result 68 states and 87 transitions. [2018-10-22 15:46:41,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-22 15:46:41,838 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-10-22 15:46:41,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:41,841 INFO L225 Difference]: With dead ends: 68 [2018-10-22 15:46:41,841 INFO L226 Difference]: Without dead ends: 66 [2018-10-22 15:46:41,842 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-10-22 15:46:41,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-10-22 15:46:41,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-10-22 15:46:41,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-10-22 15:46:41,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2018-10-22 15:46:41,854 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 49 [2018-10-22 15:46:41,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:41,855 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2018-10-22 15:46:41,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-22 15:46:41,855 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2018-10-22 15:46:41,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-22 15:46:41,858 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:41,858 INFO L375 BasicCegarLoop]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:41,859 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:41,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:41,859 INFO L82 PathProgramCache]: Analyzing trace with hash 94445894, now seen corresponding path program 1 times [2018-10-22 15:46:41,859 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:41,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:41,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:41,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:41,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 23 proven. 34 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-10-22 15:46:42,015 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:42,015 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:42,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:42,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:42,269 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-10-22 15:46:42,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:46:42,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-10-22 15:46:42,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-22 15:46:42,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-22 15:46:42,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-22 15:46:42,292 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand 9 states. [2018-10-22 15:46:42,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:42,787 INFO L93 Difference]: Finished difference Result 75 states and 93 transitions. [2018-10-22 15:46:42,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-22 15:46:42,788 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2018-10-22 15:46:42,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:42,791 INFO L225 Difference]: With dead ends: 75 [2018-10-22 15:46:42,791 INFO L226 Difference]: Without dead ends: 73 [2018-10-22 15:46:42,792 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-10-22 15:46:42,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-10-22 15:46:42,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2018-10-22 15:46:42,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-10-22 15:46:42,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 86 transitions. [2018-10-22 15:46:42,803 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 86 transitions. Word has length 85 [2018-10-22 15:46:42,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:42,804 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 86 transitions. [2018-10-22 15:46:42,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-22 15:46:42,804 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 86 transitions. [2018-10-22 15:46:42,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-22 15:46:42,807 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:42,807 INFO L375 BasicCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:42,807 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:42,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:42,808 INFO L82 PathProgramCache]: Analyzing trace with hash 952671960, now seen corresponding path program 1 times [2018-10-22 15:46:42,808 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:42,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:42,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:42,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:42,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:42,961 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 25 proven. 37 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2018-10-22 15:46:42,962 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:42,962 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:42,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:43,004 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:43,077 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2018-10-22 15:46:43,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:46:43,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2018-10-22 15:46:43,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-22 15:46:43,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-22 15:46:43,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-10-22 15:46:43,099 INFO L87 Difference]: Start difference. First operand 68 states and 86 transitions. Second operand 10 states. [2018-10-22 15:46:43,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:43,469 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2018-10-22 15:46:43,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-22 15:46:43,469 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2018-10-22 15:46:43,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:43,471 INFO L225 Difference]: With dead ends: 75 [2018-10-22 15:46:43,471 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 15:46:43,472 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-10-22 15:46:43,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 15:46:43,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 15:46:43,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 15:46:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 15:46:43,474 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2018-10-22 15:46:43,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:43,474 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 15:46:43,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-22 15:46:43,474 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 15:46:43,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 15:46:43,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 15:46:43,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-22 15:46:43,512 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-22 15:46:43,903 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-10-22 15:46:43,904 INFO L425 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-10-22 15:46:43,904 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-22 15:46:43,904 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:46:43,904 INFO L421 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-10-22 15:46:43,905 INFO L421 ceAbstractionStarter]: At program point L28-1(line 28) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-10-22 15:46:43,905 INFO L421 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (let ((.cse5 (+ ULTIMATE.start_main_~cp~0 1))) (let ((.cse0 (<= (+ ULTIMATE.start_main_~c~0 2) ULTIMATE.start_main_~tokenlen~0)) (.cse1 (not (= ULTIMATE.start_main_~urilen~0 .cse5))) (.cse2 (<= .cse5 ULTIMATE.start_main_~urilen~0)) (.cse3 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse4 (<= 0 ULTIMATE.start_main_~scheme~0))) (or (and (= ULTIMATE.start_main_~c~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ULTIMATE.start_main_~c~0))))) [2018-10-22 15:46:43,905 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-10-22 15:46:43,905 INFO L421 ceAbstractionStarter]: At program point L53-1(line 53) the Hoare annotation is: (let ((.cse5 (+ ULTIMATE.start_main_~cp~0 1))) (let ((.cse0 (<= (+ ULTIMATE.start_main_~c~0 2) ULTIMATE.start_main_~tokenlen~0)) (.cse1 (not (= ULTIMATE.start_main_~urilen~0 .cse5))) (.cse2 (<= .cse5 ULTIMATE.start_main_~urilen~0)) (.cse3 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse4 (<= 0 ULTIMATE.start_main_~scheme~0))) (or (and (= ULTIMATE.start_main_~c~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ULTIMATE.start_main_~c~0))))) [2018-10-22 15:46:43,906 INFO L425 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-10-22 15:46:43,906 INFO L425 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-10-22 15:46:43,906 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-10-22 15:46:43,906 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 11 69) no Hoare annotation was computed. [2018-10-22 15:46:43,906 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 66) no Hoare annotation was computed. [2018-10-22 15:46:43,906 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2018-10-22 15:46:43,907 INFO L425 ceAbstractionStarter]: For program point L22(lines 11 69) no Hoare annotation was computed. [2018-10-22 15:46:43,907 INFO L425 ceAbstractionStarter]: For program point L55-1(lines 55 61) no Hoare annotation was computed. [2018-10-22 15:46:43,907 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 65) no Hoare annotation was computed. [2018-10-22 15:46:43,907 INFO L421 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-10-22 15:46:43,907 INFO L421 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-10-22 15:46:43,908 INFO L421 ceAbstractionStarter]: At program point L31-1(line 31) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-10-22 15:46:43,908 INFO L425 ceAbstractionStarter]: For program point L23(lines 11 69) no Hoare annotation was computed. [2018-10-22 15:46:43,908 INFO L425 ceAbstractionStarter]: For program point L40(lines 30 66) no Hoare annotation was computed. [2018-10-22 15:46:43,908 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-22 15:46:43,908 INFO L421 ceAbstractionStarter]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~tokenlen~0) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0) (<= 1 ULTIMATE.start_main_~c~0))) [2018-10-22 15:46:43,908 INFO L421 ceAbstractionStarter]: At program point L57-1(line 57) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~tokenlen~0) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0) (<= 1 ULTIMATE.start_main_~c~0))) [2018-10-22 15:46:43,909 INFO L421 ceAbstractionStarter]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (= ULTIMATE.start_main_~c~0 0) (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-10-22 15:46:43,909 INFO L421 ceAbstractionStarter]: At program point L49-1(line 49) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (= ULTIMATE.start_main_~c~0 0) (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-10-22 15:46:43,909 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2018-10-22 15:46:43,909 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:46:43,909 INFO L421 ceAbstractionStarter]: At program point L33-2(lines 32 38) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-10-22 15:46:43,910 INFO L421 ceAbstractionStarter]: At program point L33-3(lines 33 38) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0)) [2018-10-22 15:46:43,910 INFO L421 ceAbstractionStarter]: At program point L58(line 58) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~tokenlen~0) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0) (<= 1 ULTIMATE.start_main_~c~0))) [2018-10-22 15:46:43,910 INFO L421 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-10-22 15:46:43,910 INFO L421 ceAbstractionStarter]: At program point L42-1(line 42) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-10-22 15:46:43,910 INFO L428 ceAbstractionStarter]: At program point L67(lines 11 69) the Hoare annotation is: true [2018-10-22 15:46:43,911 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-10-22 15:46:43,911 INFO L421 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~tokenlen~0) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0) (<= 1 ULTIMATE.start_main_~c~0))) [2018-10-22 15:46:43,911 INFO L425 ceAbstractionStarter]: For program point L51(lines 51 63) no Hoare annotation was computed. [2018-10-22 15:46:43,911 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-10-22 15:46:43,911 INFO L421 ceAbstractionStarter]: At program point L51-2(lines 50 63) the Hoare annotation is: (let ((.cse0 (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) (.cse1 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse2 (<= 0 ULTIMATE.start_main_~scheme~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start_main_~c~0)) (and (= ULTIMATE.start_main_~c~0 0) .cse0 .cse1 .cse2))) [2018-10-22 15:46:43,912 INFO L425 ceAbstractionStarter]: For program point L43(lines 30 66) no Hoare annotation was computed. [2018-10-22 15:46:43,912 INFO L428 ceAbstractionStarter]: At program point L68(lines 10 69) the Hoare annotation is: true [2018-10-22 15:46:43,912 INFO L421 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-10-22 15:46:43,912 INFO L421 ceAbstractionStarter]: At program point L35-1(line 35) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~cp~0 1))) (and (not (= ULTIMATE.start_main_~urilen~0 .cse0)) (<= .cse0 ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (<= 0 ULTIMATE.start_main_~scheme~0))) [2018-10-22 15:46:43,913 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-22 15:46:43,913 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 15:46:43,913 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-22 15:46:43,913 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 15:46:43,913 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 15:46:43,913 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-22 15:46:43,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:46:43 BoogieIcfgContainer [2018-10-22 15:46:43,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:46:43,932 INFO L168 Benchmark]: Toolchain (without parser) took 6876.54 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -400.2 MB). Peak memory consumption was 350.1 MB. Max. memory is 7.1 GB. [2018-10-22 15:46:43,935 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. [2018-10-22 15:46:43,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.11 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. [2018-10-22 15:46:43,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.34 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. [2018-10-22 15:46:43,938 INFO L168 Benchmark]: Boogie Preprocessor took 48.39 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. [2018-10-22 15:46:43,938 INFO L168 Benchmark]: RCFGBuilder took 639.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -803.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-10-22 15:46:43,939 INFO L168 Benchmark]: TraceAbstraction took 5767.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 392.3 MB). Peak memory consumption was 392.3 MB. Max. memory is 7.1 GB. [2018-10-22 15:46:43,947 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 373.11 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 43.34 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 48.39 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 639.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -803.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5767.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 392.3 MB). Peak memory consumption was 392.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (cp + 1 <= urilen && 1 <= cp) && 0 <= scheme - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((cp + 1 <= urilen && 1 <= cp) && 0 <= scheme) && 1 <= c) || (((c == 0 && cp + 1 <= urilen) && 1 <= cp) && 0 <= scheme) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. SAFE Result, 5.6s OverallTime, 6 OverallIterations, 14 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 323 SDtfs, 122 SDslu, 1030 SDs, 0 SdLazy, 939 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 295 GetRequests, 248 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 73 PreInvPairs, 101 NumberOfFragments, 442 HoareAnnotationTreeSize, 73 FomulaSimplifications, 216 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 545 NumberOfCodeBlocks, 545 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 535 ConstructedInterpolants, 0 QuantifiedInterpolants, 57337 SizeOfPredicates, 10 NumberOfNonLiveVariables, 475 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 1377/1472 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...