java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/eq2_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 22:58:42,406 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:58:42,408 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:58:42,419 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:58:42,420 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:58:42,421 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:58:42,422 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:58:42,424 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:58:42,425 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:58:42,426 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:58:42,427 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:58:42,427 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:58:42,428 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:58:42,429 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:58:42,430 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:58:42,431 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:58:42,432 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:58:42,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:58:42,436 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:58:42,437 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:58:42,438 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:58:42,439 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:58:42,442 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 22:58:42,442 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 22:58:42,442 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 22:58:42,443 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 22:58:42,444 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 22:58:42,445 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 22:58:42,446 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 22:58:42,447 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 22:58:42,447 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 22:58:42,448 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 22:58:42,450 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 22:58:42,465 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:58:42,465 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:58:42,466 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:58:42,466 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:58:42,467 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:58:42,467 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:58:42,467 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:58:42,467 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:58:42,467 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:58:42,468 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:58:42,468 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:58:42,468 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:58:42,468 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:58:42,468 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:58:42,469 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:58:42,469 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:58:42,469 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:58:42,469 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:58:42,469 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:58:42,470 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:58:42,470 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:58:42,470 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:58:42,470 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:58:42,470 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:58:42,470 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:58:42,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:58:42,471 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:58:42,471 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:58:42,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:58:42,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:58:42,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:58:42,529 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:58:42,530 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:58:42,530 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/eq2_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-06 22:58:42,583 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53989c7c4/b4262593764545159694f0d37b86ae1e/FLAGad9b05951 [2018-11-06 22:58:43,059 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:58:43,060 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-06 22:58:43,067 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53989c7c4/b4262593764545159694f0d37b86ae1e/FLAGad9b05951 [2018-11-06 22:58:43,082 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53989c7c4/b4262593764545159694f0d37b86ae1e [2018-11-06 22:58:43,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:58:43,094 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:58:43,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:58:43,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:58:43,099 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:58:43,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:43" (1/1) ... [2018-11-06 22:58:43,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c1454e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43, skipping insertion in model container [2018-11-06 22:58:43,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:43" (1/1) ... [2018-11-06 22:58:43,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:58:43,140 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:58:43,324 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:58:43,328 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:58:43,345 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:58:43,360 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:58:43,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43 WrapperNode [2018-11-06 22:58:43,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:58:43,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:58:43,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:58:43,362 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:58:43,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43" (1/1) ... [2018-11-06 22:58:43,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43" (1/1) ... [2018-11-06 22:58:43,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:58:43,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:58:43,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:58:43,405 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:58:43,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43" (1/1) ... [2018-11-06 22:58:43,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43" (1/1) ... [2018-11-06 22:58:43,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43" (1/1) ... [2018-11-06 22:58:43,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43" (1/1) ... [2018-11-06 22:58:43,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43" (1/1) ... [2018-11-06 22:58:43,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43" (1/1) ... [2018-11-06 22:58:43,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43" (1/1) ... [2018-11-06 22:58:43,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:58:43,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:58:43,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:58:43,428 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:58:43,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:58:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:58:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:58:43,837 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:58:43,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:43 BoogieIcfgContainer [2018-11-06 22:58:43,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:58:43,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:58:43,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:58:43,842 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:58:43,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:58:43" (1/3) ... [2018-11-06 22:58:43,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b7c6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:43, skipping insertion in model container [2018-11-06 22:58:43,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:43" (2/3) ... [2018-11-06 22:58:43,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b7c6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:43, skipping insertion in model container [2018-11-06 22:58:43,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:43" (3/3) ... [2018-11-06 22:58:43,845 INFO L112 eAbstractionObserver]: Analyzing ICFG eq2_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-06 22:58:43,856 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:58:43,863 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:58:43,880 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:58:43,911 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:58:43,912 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:58:43,912 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:58:43,912 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:58:43,913 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:58:43,913 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:58:43,913 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:58:43,913 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:58:43,913 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:58:43,928 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-06 22:58:43,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-06 22:58:43,935 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:58:43,936 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-11-06 22:58:43,938 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:58:43,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:58:43,944 INFO L82 PathProgramCache]: Analyzing trace with hash 889783783, now seen corresponding path program 1 times [2018-11-06 22:58:43,947 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:58:43,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:58:43,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:58:43,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:58:43,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:58:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:58:44,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:58:44,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:58:44,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 22:58:44,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-06 22:58:44,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-06 22:58:44,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-06 22:58:44,082 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-11-06 22:58:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:58:44,098 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-06 22:58:44,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-06 22:58:44,099 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-11-06 22:58:44,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:58:44,108 INFO L225 Difference]: With dead ends: 20 [2018-11-06 22:58:44,108 INFO L226 Difference]: Without dead ends: 8 [2018-11-06 22:58:44,112 INFO L604 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 [2018-11-06 22:58:44,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-11-06 22:58:44,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-06 22:58:44,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-06 22:58:44,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-11-06 22:58:44,143 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-11-06 22:58:44,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:58:44,143 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-11-06 22:58:44,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-06 22:58:44,144 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-11-06 22:58:44,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-06 22:58:44,144 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:58:44,145 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:58:44,145 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:58:44,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:58:44,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1805923659, now seen corresponding path program 1 times [2018-11-06 22:58:44,146 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:58:44,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:58:44,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:58:44,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:58:44,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:58:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:58:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:58:44,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:58:44,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 22:58:44,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 22:58:44,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 22:58:44,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-06 22:58:44,384 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 4 states. [2018-11-06 22:58:44,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:58:44,465 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-11-06 22:58:44,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:58:44,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-11-06 22:58:44,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:58:44,465 INFO L225 Difference]: With dead ends: 8 [2018-11-06 22:58:44,465 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 22:58:44,467 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:58:44,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 22:58:44,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 22:58:44,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 22:58:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 22:58:44,468 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-06 22:58:44,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:58:44,468 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 22:58:44,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 22:58:44,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 22:58:44,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 22:58:44,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 22:58:44,515 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-06 22:58:44,515 INFO L428 ceAbstractionStarter]: At program point L19(lines 9 20) the Hoare annotation is: true [2018-11-06 22:58:44,516 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-06 22:58:44,516 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-11-06 22:58:44,516 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-11-06 22:58:44,516 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-06 22:58:44,516 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-06 22:58:44,516 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2018-11-06 22:58:44,517 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (and (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) (<= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0)) [2018-11-06 22:58:44,517 INFO L425 ceAbstractionStarter]: For program point L14-4(lines 14 17) no Hoare annotation was computed. [2018-11-06 22:58:44,517 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-06 22:58:44,517 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-11-06 22:58:44,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:58:44 BoogieIcfgContainer [2018-11-06 22:58:44,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:58:44,531 INFO L168 Benchmark]: Toolchain (without parser) took 1438.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -749.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:58:44,534 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:58:44,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-06 22:58:44,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:58:44,536 INFO L168 Benchmark]: Boogie Preprocessor took 23.08 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:58:44,537 INFO L168 Benchmark]: RCFGBuilder took 410.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2018-11-06 22:58:44,538 INFO L168 Benchmark]: TraceAbstraction took 691.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2018-11-06 22:58:44,543 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 266.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 42.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.08 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 410.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 691.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: y <= z && z <= y - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 1 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 9 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...