java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/sum_array_false-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:36:08,255 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:36:08,259 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:36:08,277 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:36:08,277 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:36:08,278 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:36:08,280 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:36:08,283 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:36:08,286 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:36:08,295 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:36:08,296 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:36:08,296 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:36:08,297 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:36:08,298 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:36:08,299 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:36:08,301 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:36:08,301 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:36:08,303 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:36:08,305 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:36:08,307 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:36:08,308 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:36:08,310 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:36:08,312 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 15:36:08,312 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 15:36:08,313 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 15:36:08,314 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 15:36:08,315 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 15:36:08,316 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 15:36:08,317 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 15:36:08,318 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 15:36:08,318 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 15:36:08,319 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-22 15:36:08,323 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-22 15:36:08,352 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:36:08,352 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:36:08,353 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:36:08,353 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:36:08,354 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:36:08,354 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:36:08,354 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:36:08,355 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:36:08,355 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:36:08,355 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:36:08,355 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:36:08,355 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:36:08,356 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:36:08,356 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:36:08,356 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:36:08,356 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:36:08,356 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:36:08,357 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:36:08,357 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:36:08,357 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:36:08,357 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:36:08,357 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:36:08,358 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:36:08,358 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:36:08,358 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:36:08,358 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:36:08,359 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:36:08,359 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:36:08,406 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:36:08,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:36:08,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:36:08,424 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:36:08,425 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:36:08,426 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/sum_array_false-unreach-call.i [2018-10-22 15:36:08,488 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0613ba062/ae20765e9ddb42ad965d2bf231fae639/FLAGd0c8a2aec [2018-10-22 15:36:08,921 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:36:08,922 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array_false-unreach-call.i [2018-10-22 15:36:08,929 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0613ba062/ae20765e9ddb42ad965d2bf231fae639/FLAGd0c8a2aec [2018-10-22 15:36:08,945 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0613ba062/ae20765e9ddb42ad965d2bf231fae639 [2018-10-22 15:36:08,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:36:08,956 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:36:08,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:36:08,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:36:08,961 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:36:08,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:36:08" (1/1) ... [2018-10-22 15:36:08,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c5ece5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:08, skipping insertion in model container [2018-10-22 15:36:08,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:36:08" (1/1) ... [2018-10-22 15:36:08,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:36:09,001 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:36:09,199 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:36:09,205 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:36:09,237 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:36:09,271 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:36:09,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09 WrapperNode [2018-10-22 15:36:09,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:36:09,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:36:09,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:36:09,273 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:36:09,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09" (1/1) ... [2018-10-22 15:36:09,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09" (1/1) ... [2018-10-22 15:36:09,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:36:09,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:36:09,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:36:09,331 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:36:09,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09" (1/1) ... [2018-10-22 15:36:09,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09" (1/1) ... [2018-10-22 15:36:09,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09" (1/1) ... [2018-10-22 15:36:09,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09" (1/1) ... [2018-10-22 15:36:09,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09" (1/1) ... [2018-10-22 15:36:09,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09" (1/1) ... [2018-10-22 15:36:09,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09" (1/1) ... [2018-10-22 15:36:09,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:36:09,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:36:09,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:36:09,387 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:36:09,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:36:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-22 15:36:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-22 15:36:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:36:09,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:36:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-22 15:36:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-22 15:36:10,101 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:36:10,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:36:10 BoogieIcfgContainer [2018-10-22 15:36:10,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:36:10,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:36:10,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:36:10,107 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:36:10,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:36:08" (1/3) ... [2018-10-22 15:36:10,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6d44f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:36:10, skipping insertion in model container [2018-10-22 15:36:10,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:36:09" (2/3) ... [2018-10-22 15:36:10,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6d44f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:36:10, skipping insertion in model container [2018-10-22 15:36:10,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:36:10" (3/3) ... [2018-10-22 15:36:10,113 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array_false-unreach-call.i [2018-10-22 15:36:10,123 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:36:10,135 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:36:10,154 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:36:10,196 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:36:10,197 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:36:10,197 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:36:10,197 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:36:10,197 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:36:10,197 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:36:10,198 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:36:10,198 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:36:10,198 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:36:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-10-22 15:36:10,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-22 15:36:10,224 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:36:10,226 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:36:10,231 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:36:10,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:36:10,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1077543020, now seen corresponding path program 1 times [2018-10-22 15:36:10,241 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:36:10,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:36:10,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:10,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:10,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:36:10,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:36:10,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:36:10,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:36:10,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:36:10,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:36:10,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:36:10,399 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-10-22 15:36:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:36:10,421 INFO L93 Difference]: Finished difference Result 81 states and 95 transitions. [2018-10-22 15:36:10,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:36:10,423 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-10-22 15:36:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:36:10,434 INFO L225 Difference]: With dead ends: 81 [2018-10-22 15:36:10,434 INFO L226 Difference]: Without dead ends: 37 [2018-10-22 15:36:10,438 INFO L605 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 [2018-10-22 15:36:10,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-10-22 15:36:10,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-10-22 15:36:10,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-22 15:36:10,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-10-22 15:36:10,475 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 20 [2018-10-22 15:36:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:36:10,475 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-10-22 15:36:10,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:36:10,476 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-10-22 15:36:10,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-22 15:36:10,477 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:36:10,477 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:36:10,478 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:36:10,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:36:10,478 INFO L82 PathProgramCache]: Analyzing trace with hash -935536917, now seen corresponding path program 1 times [2018-10-22 15:36:10,478 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:36:10,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:36:10,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:10,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:10,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:36:10,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:36:10,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:36:10,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-22 15:36:10,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-22 15:36:10,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-22 15:36:10,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-22 15:36:10,622 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 4 states. [2018-10-22 15:36:11,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:36:11,115 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2018-10-22 15:36:11,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-22 15:36:11,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-10-22 15:36:11,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:36:11,120 INFO L225 Difference]: With dead ends: 99 [2018-10-22 15:36:11,120 INFO L226 Difference]: Without dead ends: 65 [2018-10-22 15:36:11,123 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:36:11,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-10-22 15:36:11,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 43. [2018-10-22 15:36:11,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-10-22 15:36:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2018-10-22 15:36:11,135 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 23 [2018-10-22 15:36:11,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:36:11,136 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2018-10-22 15:36:11,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-22 15:36:11,137 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2018-10-22 15:36:11,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-22 15:36:11,138 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:36:11,138 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:36:11,139 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:36:11,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:36:11,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1425916964, now seen corresponding path program 1 times [2018-10-22 15:36:11,140 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:36:11,140 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:36:11,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:11,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:36:11,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:36:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-22 15:36:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-22 15:36:11,412 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-22 15:36:11,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:36:11 BoogieIcfgContainer [2018-10-22 15:36:11,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:36:11,457 INFO L168 Benchmark]: Toolchain (without parser) took 2502.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -735.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2018-10-22 15:36:11,460 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:36:11,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-22 15:36:11,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.40 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:36:11,463 INFO L168 Benchmark]: Boogie Preprocessor took 55.95 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:36:11,463 INFO L168 Benchmark]: RCFGBuilder took 715.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-22 15:36:11,464 INFO L168 Benchmark]: TraceAbstraction took 1352.75 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 56.3 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. [2018-10-22 15:36:11,469 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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. * CACSL2BoogieTranslator took 315.17 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 57.40 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 55.95 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 715.42 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1352.75 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 56.3 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] unsigned int M = __VERIFIER_nondet_uint(); [L15] FCALL int A[M], B[M], C[M]; [L16] unsigned int i; [L18] i=0 [L18] COND TRUE i