java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/ludcmp_false-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 21:44:47,987 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 21:44:47,989 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 21:44:48,004 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 21:44:48,004 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 21:44:48,005 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 21:44:48,006 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 21:44:48,014 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 21:44:48,016 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 21:44:48,017 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 21:44:48,017 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 21:44:48,018 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 21:44:48,019 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 21:44:48,019 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 21:44:48,020 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 21:44:48,023 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 21:44:48,024 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 21:44:48,026 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 21:44:48,028 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 21:44:48,029 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 21:44:48,030 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 21:44:48,031 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 21:44:48,033 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 21:44:48,033 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 21:44:48,034 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 21:44:48,034 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 21:44:48,035 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 21:44:48,036 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 21:44:48,037 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 21:44:48,038 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 21:44:48,038 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 21:44:48,039 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-21 21:44:48,041 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-21 21:44:48,055 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 21:44:48,055 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 21:44:48,056 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 21:44:48,056 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-21 21:44:48,057 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-21 21:44:48,057 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-21 21:44:48,057 INFO L133 SettingsManager]: * Use SBE=true [2018-07-21 21:44:48,057 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 21:44:48,058 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 21:44:48,058 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 21:44:48,058 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 21:44:48,058 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 21:44:48,058 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 21:44:48,059 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 21:44:48,059 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 21:44:48,059 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 21:44:48,059 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 21:44:48,059 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 21:44:48,060 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 21:44:48,060 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 21:44:48,060 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 21:44:48,060 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 21:44:48,061 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 21:44:48,061 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 21:44:48,061 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-21 21:44:48,061 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 21:44:48,062 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 21:44:48,062 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 21:44:48,062 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 21:44:48,102 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 21:44:48,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 21:44:48,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 21:44:48,120 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 21:44:48,121 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 21:44:48,121 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/ludcmp_false-unreach-call.i [2018-07-21 21:44:48,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/13b8c2798/0d98702df6b5412ba17ac2568c8ddb7f/FLAG74dcea126 [2018-07-21 21:44:48,657 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 21:44:48,658 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/loops/ludcmp_false-unreach-call.i [2018-07-21 21:44:48,666 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/13b8c2798/0d98702df6b5412ba17ac2568c8ddb7f/FLAG74dcea126 [2018-07-21 21:44:48,679 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/13b8c2798/0d98702df6b5412ba17ac2568c8ddb7f [2018-07-21 21:44:48,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 21:44:48,694 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 21:44:48,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 21:44:48,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 21:44:48,704 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 21:44:48,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:44:48" (1/1) ... [2018-07-21 21:44:48,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc5925d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:48, skipping insertion in model container [2018-07-21 21:44:48,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:44:48" (1/1) ... [2018-07-21 21:44:48,853 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 21:44:48,920 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:44:49,083 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 21:44:49,100 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:44:49,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49 WrapperNode [2018-07-21 21:44:49,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 21:44:49,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 21:44:49,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 21:44:49,225 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 21:44:49,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49" (1/1) ... [2018-07-21 21:44:49,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49" (1/1) ... [2018-07-21 21:44:49,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 21:44:49,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 21:44:49,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 21:44:49,396 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 21:44:49,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49" (1/1) ... [2018-07-21 21:44:49,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49" (1/1) ... [2018-07-21 21:44:49,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49" (1/1) ... [2018-07-21 21:44:49,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49" (1/1) ... [2018-07-21 21:44:49,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49" (1/1) ... [2018-07-21 21:44:49,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49" (1/1) ... [2018-07-21 21:44:49,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49" (1/1) ... [2018-07-21 21:44:49,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 21:44:49,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 21:44:49,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 21:44:49,631 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 21:44:49,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 21:44:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 21:44:49,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 21:44:59,955 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 21:44:59,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:44:59 BoogieIcfgContainer [2018-07-21 21:44:59,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 21:44:59,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 21:44:59,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 21:44:59,961 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 21:44:59,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:44:48" (1/3) ... [2018-07-21 21:44:59,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c72446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:44:59, skipping insertion in model container [2018-07-21 21:44:59,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:44:49" (2/3) ... [2018-07-21 21:44:59,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c72446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:44:59, skipping insertion in model container [2018-07-21 21:44:59,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:44:59" (3/3) ... [2018-07-21 21:44:59,965 INFO L112 eAbstractionObserver]: Analyzing ICFG ludcmp_false-unreach-call.i [2018-07-21 21:44:59,972 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 21:44:59,979 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 21:45:00,043 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 21:45:00,044 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 21:45:00,044 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 21:45:00,045 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 21:45:00,045 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 21:45:00,045 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 21:45:00,045 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 21:45:00,045 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 21:45:00,046 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 21:45:00,064 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-07-21 21:45:00,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-21 21:45:00,070 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:45:00,070 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:45:00,071 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:45:00,075 INFO L82 PathProgramCache]: Analyzing trace with hash 150442924, now seen corresponding path program 1 times [2018-07-21 21:45:00,077 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 21:45:00,078 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 21:45:00,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:00,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:45:00,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:45:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:45:01,968 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:45:01,969 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-21 21:45:01,972 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-21 21:45:01,988 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-21 21:45:01,989 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-21 21:45:01,991 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-07-21 21:45:02,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:45:02,027 INFO L93 Difference]: Finished difference Result 120 states and 174 transitions. [2018-07-21 21:45:02,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-21 21:45:02,029 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2018-07-21 21:45:02,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:45:02,040 INFO L225 Difference]: With dead ends: 120 [2018-07-21 21:45:02,041 INFO L226 Difference]: Without dead ends: 15 [2018-07-21 21:45:02,044 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-21 21:45:02,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-21 21:45:02,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-07-21 21:45:02,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-21 21:45:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-07-21 21:45:02,075 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 8 [2018-07-21 21:45:02,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:45:02,075 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-07-21 21:45:02,075 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-21 21:45:02,076 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-07-21 21:45:02,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-21 21:45:02,076 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:45:02,076 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:45:02,076 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:45:02,077 INFO L82 PathProgramCache]: Analyzing trace with hash 353537240, now seen corresponding path program 1 times [2018-07-21 21:45:02,077 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 21:45:02,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 21:45:02,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:02,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:45:02,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:45:03,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:45:03,484 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:45:03,484 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 21:45:03,486 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 21:45:03,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 21:45:03,486 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-21 21:45:03,487 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2018-07-21 21:45:03,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:45:03,743 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-07-21 21:45:03,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 21:45:03,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-07-21 21:45:03,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:45:03,744 INFO L225 Difference]: With dead ends: 46 [2018-07-21 21:45:03,745 INFO L226 Difference]: Without dead ends: 33 [2018-07-21 21:45:03,746 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-21 21:45:03,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-07-21 21:45:03,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 20. [2018-07-21 21:45:03,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-21 21:45:03,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-07-21 21:45:03,751 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9 [2018-07-21 21:45:03,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:45:03,751 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-07-21 21:45:03,751 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 21:45:03,751 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-07-21 21:45:03,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-21 21:45:03,752 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:45:03,752 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:45:03,752 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:45:03,752 INFO L82 PathProgramCache]: Analyzing trace with hash -866044876, now seen corresponding path program 1 times [2018-07-21 21:45:03,753 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 21:45:03,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 21:45:03,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:03,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:45:03,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:45:05,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:45:05,454 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 21:45:05,454 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-07-21 21:45:05,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:45:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:45:05,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 21:45:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:45:05,652 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 21:45:05,652 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2018-07-21 21:45:05,652 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-21 21:45:05,653 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-21 21:45:05,653 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-07-21 21:45:05,653 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 9 states. [2018-07-21 21:45:05,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:45:05,896 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2018-07-21 21:45:05,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 21:45:05,896 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2018-07-21 21:45:05,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:45:05,897 INFO L225 Difference]: With dead ends: 61 [2018-07-21 21:45:05,898 INFO L226 Difference]: Without dead ends: 48 [2018-07-21 21:45:05,898 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-07-21 21:45:05,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-07-21 21:45:05,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 36. [2018-07-21 21:45:05,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-07-21 21:45:05,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-07-21 21:45:05,905 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 14 [2018-07-21 21:45:05,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:45:05,906 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-07-21 21:45:05,906 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-21 21:45:05,906 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-07-21 21:45:05,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-21 21:45:05,907 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:45:05,907 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:45:05,907 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:45:05,907 INFO L82 PathProgramCache]: Analyzing trace with hash -605872106, now seen corresponding path program 1 times [2018-07-21 21:45:05,908 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 21:45:05,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 21:45:05,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:05,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:45:05,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:45:07,870 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-07-21 21:45:08,063 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-21 21:45:08,287 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-21 21:45:08,304 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:45:08,305 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 21:45:08,305 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-07-21 21:45:08,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:45:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:45:08,385 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 21:45:08,770 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:45:08,800 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 21:45:08,800 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2018-07-21 21:45:08,800 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-21 21:45:08,800 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-21 21:45:08,801 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2018-07-21 21:45:08,801 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 11 states. [2018-07-21 21:45:08,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:45:08,946 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2018-07-21 21:45:08,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-21 21:45:08,947 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2018-07-21 21:45:08,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:45:08,950 INFO L225 Difference]: With dead ends: 78 [2018-07-21 21:45:08,950 INFO L226 Difference]: Without dead ends: 58 [2018-07-21 21:45:08,951 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2018-07-21 21:45:08,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-21 21:45:08,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 46. [2018-07-21 21:45:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-07-21 21:45:08,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2018-07-21 21:45:08,960 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 19 [2018-07-21 21:45:08,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:45:08,961 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2018-07-21 21:45:08,961 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-21 21:45:08,961 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2018-07-21 21:45:08,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-07-21 21:45:08,962 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:45:08,962 INFO L358 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:45:08,962 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:45:08,962 INFO L82 PathProgramCache]: Analyzing trace with hash -645705356, now seen corresponding path program 2 times [2018-07-21 21:45:08,962 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 21:45:08,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 21:45:08,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:08,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:45:08,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:45:10,019 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:45:10,019 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 21:45:10,019 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 21:45:10,031 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-21 21:45:22,083 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-21 21:45:22,083 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-21 21:45:22,091 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 21:45:22,135 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:45:22,159 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 21:45:22,159 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2018-07-21 21:45:22,159 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-21 21:45:22,159 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-21 21:45:22,160 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2018-07-21 21:45:22,160 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 13 states. [2018-07-21 21:45:22,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:45:22,831 INFO L93 Difference]: Finished difference Result 93 states and 110 transitions. [2018-07-21 21:45:22,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-21 21:45:22,831 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2018-07-21 21:45:22,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:45:22,832 INFO L225 Difference]: With dead ends: 93 [2018-07-21 21:45:22,832 INFO L226 Difference]: Without dead ends: 68 [2018-07-21 21:45:22,833 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2018-07-21 21:45:22,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-07-21 21:45:22,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 56. [2018-07-21 21:45:22,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-07-21 21:45:22,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2018-07-21 21:45:22,841 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 24 [2018-07-21 21:45:22,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:45:22,841 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2018-07-21 21:45:22,841 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-21 21:45:22,841 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2018-07-21 21:45:22,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-21 21:45:22,842 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:45:22,842 INFO L358 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:45:22,842 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:45:22,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1648276778, now seen corresponding path program 3 times [2018-07-21 21:45:22,843 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 21:45:22,843 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 21:45:22,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:22,844 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-21 21:45:22,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:45:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:45:23,946 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-07-21 21:45:24,248 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:45:24,248 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 21:45:24,249 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-21 21:45:24,255 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-21 21:46:12,319 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-07-21 21:46:12,319 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-21 21:46:12,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 21:46:12,425 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:46:12,452 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 21:46:12,453 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2018-07-21 21:46:12,453 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-21 21:46:12,453 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-21 21:46:12,453 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=120, Unknown=0, NotChecked=0, Total=210 [2018-07-21 21:46:12,454 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand 15 states. [2018-07-21 21:46:12,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:46:12,586 INFO L93 Difference]: Finished difference Result 108 states and 128 transitions. [2018-07-21 21:46:12,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-21 21:46:12,586 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 29 [2018-07-21 21:46:12,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:46:12,587 INFO L225 Difference]: With dead ends: 108 [2018-07-21 21:46:12,587 INFO L226 Difference]: Without dead ends: 78 [2018-07-21 21:46:12,588 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=120, Unknown=0, NotChecked=0, Total=210 [2018-07-21 21:46:12,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-07-21 21:46:12,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 66. [2018-07-21 21:46:12,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-07-21 21:46:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 77 transitions. [2018-07-21 21:46:12,596 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 77 transitions. Word has length 29 [2018-07-21 21:46:12,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:46:12,597 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 77 transitions. [2018-07-21 21:46:12,597 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-21 21:46:12,597 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 77 transitions. [2018-07-21 21:46:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-07-21 21:46:12,597 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:46:12,598 INFO L358 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:46:12,598 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:46:12,598 INFO L82 PathProgramCache]: Analyzing trace with hash -2054037836, now seen corresponding path program 4 times [2018-07-21 21:46:12,598 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 21:46:12,598 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 21:46:12,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:46:12,599 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-21 21:46:12,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:46:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:46:13,451 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:46:13,452 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 21:46:13,452 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 21:46:13,458 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-07-21 21:46:13,494 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-07-21 21:46:13,495 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-21 21:46:13,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 21:46:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:46:13,811 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 21:46:13,811 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2018-07-21 21:46:13,811 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-21 21:46:13,811 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-21 21:46:13,812 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=157, Unknown=0, NotChecked=0, Total=272 [2018-07-21 21:46:13,812 INFO L87 Difference]: Start difference. First operand 66 states and 77 transitions. Second operand 17 states. [2018-07-21 21:46:13,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:46:13,974 INFO L93 Difference]: Finished difference Result 120 states and 142 transitions. [2018-07-21 21:46:13,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-21 21:46:13,974 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 34 [2018-07-21 21:46:13,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:46:13,975 INFO L225 Difference]: With dead ends: 120 [2018-07-21 21:46:13,976 INFO L226 Difference]: Without dead ends: 85 [2018-07-21 21:46:13,976 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=157, Unknown=0, NotChecked=0, Total=272 [2018-07-21 21:46:13,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-07-21 21:46:13,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 76. [2018-07-21 21:46:13,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-07-21 21:46:13,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 89 transitions. [2018-07-21 21:46:13,985 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 89 transitions. Word has length 34 [2018-07-21 21:46:13,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:46:13,985 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 89 transitions. [2018-07-21 21:46:13,985 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-21 21:46:13,986 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 89 transitions. [2018-07-21 21:46:13,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-21 21:46:13,986 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:46:13,987 INFO L358 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:46:13,987 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:46:13,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1392051606, now seen corresponding path program 5 times [2018-07-21 21:46:13,987 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 21:46:13,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 21:46:13,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:46:13,988 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-21 21:46:13,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:46:14,113 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:91) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:112) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:2063) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:618) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1027) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1171) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:114) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:502) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:210) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:228) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:425) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-21 21:46:14,117 INFO L168 Benchmark]: Toolchain (without parser) took 85428.32 ms. Allocated memory was 309.9 MB in the beginning and 1.2 GB in the end (delta: 860.4 MB). Free memory was 256.0 MB in the beginning and 867.4 MB in the end (delta: -611.4 MB). Peak memory consumption was 248.9 MB. Max. memory is 5.3 GB. [2018-07-21 21:46:14,118 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 309.9 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 21:46:14,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.74 ms. Allocated memory is still 309.9 MB. Free memory was 256.0 MB in the beginning and 214.5 MB in the end (delta: 41.5 MB). Peak memory consumption was 41.5 MB. Max. memory is 5.3 GB. [2018-07-21 21:46:14,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 170.73 ms. Allocated memory is still 309.9 MB. Free memory was 214.5 MB in the beginning and 199.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 5.3 GB. [2018-07-21 21:46:14,120 INFO L168 Benchmark]: Boogie Preprocessor took 234.10 ms. Allocated memory was 309.9 MB in the beginning and 347.6 MB in the end (delta: 37.7 MB). Free memory was 199.4 MB in the beginning and 290.1 MB in the end (delta: -90.7 MB). Peak memory consumption was 34.4 MB. Max. memory is 5.3 GB. [2018-07-21 21:46:14,120 INFO L168 Benchmark]: RCFGBuilder took 10325.75 ms. Allocated memory was 347.6 MB in the beginning and 1.1 GB in the end (delta: 718.3 MB). Free memory was 290.1 MB in the beginning and 386.9 MB in the end (delta: -96.8 MB). Peak memory consumption was 656.6 MB. Max. memory is 5.3 GB. [2018-07-21 21:46:14,121 INFO L168 Benchmark]: TraceAbstraction took 74159.22 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 104.3 MB). Free memory was 386.9 MB in the beginning and 867.4 MB in the end (delta: -480.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 21:46:14,125 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 309.9 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 528.74 ms. Allocated memory is still 309.9 MB. Free memory was 256.0 MB in the beginning and 214.5 MB in the end (delta: 41.5 MB). Peak memory consumption was 41.5 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 170.73 ms. Allocated memory is still 309.9 MB. Free memory was 214.5 MB in the beginning and 199.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 234.10 ms. Allocated memory was 309.9 MB in the beginning and 347.6 MB in the end (delta: 37.7 MB). Free memory was 199.4 MB in the beginning and 290.1 MB in the end (delta: -90.7 MB). Peak memory consumption was 34.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 10325.75 ms. Allocated memory was 347.6 MB in the beginning and 1.1 GB in the end (delta: 718.3 MB). Free memory was 290.1 MB in the beginning and 386.9 MB in the end (delta: -96.8 MB). Peak memory consumption was 656.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 74159.22 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 104.3 MB). Free memory was 386.9 MB in the beginning and 867.4 MB in the end (delta: -480.6 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:91) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ludcmp_false-unreach-call.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_21-46-14-137.csv Received shutdown request...