java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 06:12:53,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 06:12:53,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 06:12:53,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 06:12:53,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 06:12:53,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 06:12:53,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 06:12:53,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 06:12:53,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 06:12:53,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 06:12:53,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 06:12:53,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 06:12:53,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 06:12:53,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 06:12:53,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 06:12:53,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 06:12:53,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 06:12:53,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 06:12:53,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 06:12:53,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 06:12:53,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 06:12:53,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 06:12:53,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 06:12:53,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 06:12:53,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 06:12:53,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 06:12:53,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 06:12:53,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 06:12:53,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 06:12:53,354 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 06:12:53,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 06:12:53,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 06:12:53,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 06:12:53,356 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 06:12:53,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 06:12:53,357 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 06:12:53,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 06:12:53,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 06:12:53,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 06:12:53,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 06:12:53,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 06:12:53,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 06:12:53,358 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 06:12:53,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 06:12:53,358 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 06:12:53,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 06:12:53,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 06:12:53,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 06:12:53,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 06:12:53,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 06:12:53,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 06:12:53,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 06:12:53,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 06:12:53,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 06:12:53,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 06:12:53,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 06:12:53,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 06:12:53,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 06:12:53,389 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 06:12:53,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 06:12:53,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 06:12:53,405 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 06:12:53,405 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 06:12:53,406 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2019-09-08 06:12:53,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/062976c4c/f2dd48451d2b49869d7bce97b08cd508/FLAGdae77ce66 [2019-09-08 06:12:53,904 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 06:12:53,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/recHanoi03-2.c [2019-09-08 06:12:53,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/062976c4c/f2dd48451d2b49869d7bce97b08cd508/FLAGdae77ce66 [2019-09-08 06:12:54,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/062976c4c/f2dd48451d2b49869d7bce97b08cd508 [2019-09-08 06:12:54,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 06:12:54,323 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 06:12:54,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 06:12:54,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 06:12:54,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 06:12:54,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:12:54" (1/1) ... [2019-09-08 06:12:54,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a3394d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:12:54, skipping insertion in model container [2019-09-08 06:12:54,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:12:54" (1/1) ... [2019-09-08 06:12:54,341 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 06:12:54,360 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 06:12:54,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:12:54,543 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 06:12:54,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:12:54,581 INFO L192 MainTranslator]: Completed translation [2019-09-08 06:12:54,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:12:54 WrapperNode [2019-09-08 06:12:54,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 06:12:54,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 06:12:54,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 06:12:54,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 06:12:54,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:12:54" (1/1) ... [2019-09-08 06:12:54,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:12:54" (1/1) ... [2019-09-08 06:12:54,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:12:54" (1/1) ... [2019-09-08 06:12:54,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:12:54" (1/1) ... [2019-09-08 06:12:54,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:12:54" (1/1) ... [2019-09-08 06:12:54,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:12:54" (1/1) ... [2019-09-08 06:12:54,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:12:54" (1/1) ... [2019-09-08 06:12:54,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 06:12:54,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 06:12:54,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 06:12:54,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 06:12:54,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:12:54" (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 [2019-09-08 06:12:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 06:12:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 06:12:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2019-09-08 06:12:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 06:12:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 06:12:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 06:12:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2019-09-08 06:12:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 06:12:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 06:12:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 06:12:54,916 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 06:12:54,916 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 06:12:54,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:12:54 BoogieIcfgContainer [2019-09-08 06:12:54,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 06:12:54,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 06:12:54,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 06:12:54,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 06:12:54,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 06:12:54" (1/3) ... [2019-09-08 06:12:54,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7b6131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:12:54, skipping insertion in model container [2019-09-08 06:12:54,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:12:54" (2/3) ... [2019-09-08 06:12:54,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7b6131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:12:54, skipping insertion in model container [2019-09-08 06:12:54,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:12:54" (3/3) ... [2019-09-08 06:12:54,926 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2019-09-08 06:12:54,936 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 06:12:54,943 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 06:12:54,960 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 06:12:54,990 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 06:12:54,991 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 06:12:54,991 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 06:12:54,991 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 06:12:54,991 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 06:12:54,991 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 06:12:54,991 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 06:12:54,992 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 06:12:54,992 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 06:12:55,015 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-09-08 06:12:55,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-08 06:12:55,020 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:12:55,021 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:12:55,023 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:12:55,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:12:55,028 INFO L82 PathProgramCache]: Analyzing trace with hash 913793727, now seen corresponding path program 1 times [2019-09-08 06:12:55,030 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:12:55,031 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:12:55,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:12:55,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:12:55,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:12:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:12:55,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:12:55,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:12:55,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 06:12:55,217 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 06:12:55,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 06:12:55,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 06:12:55,234 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 6 states. [2019-09-08 06:12:55,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:12:55,428 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2019-09-08 06:12:55,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 06:12:55,431 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-09-08 06:12:55,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:12:55,444 INFO L225 Difference]: With dead ends: 33 [2019-09-08 06:12:55,447 INFO L226 Difference]: Without dead ends: 19 [2019-09-08 06:12:55,456 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-08 06:12:55,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-09-08 06:12:55,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-09-08 06:12:55,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-09-08 06:12:55,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-09-08 06:12:55,543 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2019-09-08 06:12:55,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:12:55,544 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-09-08 06:12:55,544 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 06:12:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-09-08 06:12:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 06:12:55,546 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:12:55,547 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:12:55,547 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:12:55,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:12:55,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1998834103, now seen corresponding path program 1 times [2019-09-08 06:12:55,548 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:12:55,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:12:55,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:12:55,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:12:55,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:12:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:12:55,753 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-08 06:12:55,756 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:12:55,757 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2019-09-08 06:12:55,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:12:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:12:55,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-08 06:12:55,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:12:56,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 06:12:56,036 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:12:56,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2019-09-08 06:12:56,038 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 06:12:56,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 06:12:56,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-08 06:12:56,040 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 14 states. [2019-09-08 06:12:56,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:12:56,239 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-09-08 06:12:56,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 06:12:56,240 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 20 [2019-09-08 06:12:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:12:56,242 INFO L225 Difference]: With dead ends: 26 [2019-09-08 06:12:56,242 INFO L226 Difference]: Without dead ends: 22 [2019-09-08 06:12:56,244 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2019-09-08 06:12:56,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-08 06:12:56,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-09-08 06:12:56,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-08 06:12:56,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-09-08 06:12:56,251 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 20 [2019-09-08 06:12:56,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:12:56,251 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-09-08 06:12:56,252 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 06:12:56,252 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-09-08 06:12:56,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-08 06:12:56,253 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:12:56,253 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:12:56,254 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:12:56,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:12:56,254 INFO L82 PathProgramCache]: Analyzing trace with hash 293522751, now seen corresponding path program 2 times [2019-09-08 06:12:56,255 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:12:56,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:12:56,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:12:56,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:12:56,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:12:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:12:56,432 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 06:12:56,432 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:12:56,432 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2019-09-08 06:12:56,454 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 06:12:56,477 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 06:12:56,478 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 06:12:56,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 15 conjunts are in the unsatisfiable core [2019-09-08 06:12:56,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:12:56,756 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 06:12:56,761 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:12:56,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2019-09-08 06:12:56,762 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-08 06:12:56,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-08 06:12:56,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2019-09-08 06:12:56,763 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 18 states. [2019-09-08 06:12:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:12:57,043 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-09-08 06:12:57,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 06:12:57,045 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 26 [2019-09-08 06:12:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:12:57,047 INFO L225 Difference]: With dead ends: 34 [2019-09-08 06:12:57,047 INFO L226 Difference]: Without dead ends: 28 [2019-09-08 06:12:57,048 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2019-09-08 06:12:57,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-09-08 06:12:57,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-09-08 06:12:57,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-09-08 06:12:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-09-08 06:12:57,057 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 26 [2019-09-08 06:12:57,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:12:57,058 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-09-08 06:12:57,058 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-08 06:12:57,058 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-09-08 06:12:57,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-09-08 06:12:57,061 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:12:57,061 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:12:57,061 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:12:57,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:12:57,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1152432193, now seen corresponding path program 3 times [2019-09-08 06:12:57,063 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:12:57,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:12:57,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:12:57,064 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 06:12:57,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:12:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:12:57,351 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-09-08 06:12:57,351 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:12:57,351 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 06:12:57,380 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:12:57,400 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-09-08 06:12:57,400 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 06:12:57,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-08 06:12:57,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:13:12,491 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-08 06:13:12,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 06:13:12,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [15] total 27 [2019-09-08 06:13:12,499 INFO L454 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-09-08 06:13:12,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-09-08 06:13:12,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=624, Unknown=6, NotChecked=0, Total=702 [2019-09-08 06:13:12,500 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 27 states. [2019-09-08 06:13:16,919 WARN L188 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 29 DAG size of output: 24 [2019-09-08 06:13:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:13:23,825 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-09-08 06:13:23,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 06:13:23,825 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 38 [2019-09-08 06:13:23,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:13:23,826 INFO L225 Difference]: With dead ends: 28 [2019-09-08 06:13:23,826 INFO L226 Difference]: Without dead ends: 0 [2019-09-08 06:13:23,828 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 22.0s TimeCoverageRelationStatistics Valid=170, Invalid=1228, Unknown=8, NotChecked=0, Total=1406 [2019-09-08 06:13:23,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-08 06:13:23,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-08 06:13:23,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-08 06:13:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-08 06:13:23,829 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2019-09-08 06:13:23,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:13:23,829 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-08 06:13:23,829 INFO L476 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-09-08 06:13:23,830 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-08 06:13:23,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-08 06:13:23,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-08 06:13:23,863 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-08 06:13:23,863 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-08 06:13:23,863 INFO L443 ceAbstractionStarter]: For program point L17(lines 17 19) no Hoare annotation was computed. [2019-09-08 06:13:23,864 INFO L443 ceAbstractionStarter]: For program point hanoiEXIT(lines 16 21) no Hoare annotation was computed. [2019-09-08 06:13:23,864 INFO L446 ceAbstractionStarter]: At program point hanoiENTRY(lines 16 21) the Hoare annotation is: true [2019-09-08 06:13:23,864 INFO L443 ceAbstractionStarter]: For program point hanoiFINAL(lines 16 21) no Hoare annotation was computed. [2019-09-08 06:13:23,864 INFO L439 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (= hanoi_~n |hanoi_#in~n|) [2019-09-08 06:13:23,864 INFO L443 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-09-08 06:13:23,864 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-08 06:13:23,865 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-08 06:13:23,865 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-08 06:13:23,865 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-08 06:13:23,865 INFO L443 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2019-09-08 06:13:23,865 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 34) no Hoare annotation was computed. [2019-09-08 06:13:23,865 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 24 35) the Hoare annotation is: true [2019-09-08 06:13:23,865 INFO L439 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: (<= main_~n~0 31) [2019-09-08 06:13:23,866 INFO L443 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2019-09-08 06:13:23,866 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 28) no Hoare annotation was computed. [2019-09-08 06:13:23,866 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 24 35) no Hoare annotation was computed. [2019-09-08 06:13:23,866 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 24 35) no Hoare annotation was computed. [2019-09-08 06:13:23,866 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2019-09-08 06:13:23,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 06:13:23 BoogieIcfgContainer [2019-09-08 06:13:23,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 06:13:23,872 INFO L168 Benchmark]: Toolchain (without parser) took 29548.97 ms. Allocated memory was 133.7 MB in the beginning and 256.9 MB in the end (delta: 123.2 MB). Free memory was 90.0 MB in the beginning and 134.7 MB in the end (delta: -44.7 MB). Peak memory consumption was 78.5 MB. Max. memory is 7.1 GB. [2019-09-08 06:13:23,873 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 107.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-08 06:13:23,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.94 ms. Allocated memory is still 133.7 MB. Free memory was 89.8 MB in the beginning and 80.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-08 06:13:23,875 INFO L168 Benchmark]: Boogie Preprocessor took 117.47 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 80.6 MB in the beginning and 177.8 MB in the end (delta: -97.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-08 06:13:23,876 INFO L168 Benchmark]: RCFGBuilder took 216.64 ms. Allocated memory is still 200.8 MB. Free memory was 177.8 MB in the beginning and 166.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-09-08 06:13:23,877 INFO L168 Benchmark]: TraceAbstraction took 28951.12 ms. Allocated memory was 200.8 MB in the beginning and 256.9 MB in the end (delta: 56.1 MB). Free memory was 166.7 MB in the beginning and 134.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2019-09-08 06:13:23,888 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 107.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 257.94 ms. Allocated memory is still 133.7 MB. Free memory was 89.8 MB in the beginning and 80.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.47 ms. Allocated memory was 133.7 MB in the beginning and 200.8 MB in the end (delta: 67.1 MB). Free memory was 80.6 MB in the beginning and 177.8 MB in the end (delta: -97.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 216.64 ms. Allocated memory is still 200.8 MB. Free memory was 177.8 MB in the beginning and 166.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28951.12 ms. Allocated memory was 200.8 MB in the beginning and 256.9 MB in the end (delta: 56.1 MB). Free memory was 166.7 MB in the beginning and 134.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 28.8s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 12.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 SDtfs, 22 SDslu, 443 SDs, 0 SdLazy, 508 SolverSat, 11 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 22.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=3, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 11 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 175 ConstructedInterpolants, 18 QuantifiedInterpolants, 26558 SizeOfPredicates, 11 NumberOfNonLiveVariables, 203 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 85/140 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...