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/terminator_02_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:40:01,320 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:40:01,322 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:40:01,343 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:40:01,343 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:40:01,345 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:40:01,346 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:40:01,349 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:40:01,355 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:40:01,358 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:40:01,360 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:40:01,363 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:40:01,364 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:40:01,368 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:40:01,370 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:40:01,373 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:40:01,376 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:40:01,378 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:40:01,389 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:40:01,392 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:40:01,393 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:40:01,395 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:40:01,397 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-22 15:40:01,406 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 15:40:01,426 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:40:01,427 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:40:01,428 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:40:01,428 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:40:01,429 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:40:01,429 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:40:01,429 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:40:01,430 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:40:01,432 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:40:01,433 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:40:01,433 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:40:01,433 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:40:01,433 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:40:01,434 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:40:01,434 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:40:01,434 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:40:01,434 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:40:01,435 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:40:01,435 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:40:01,435 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:40:01,435 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:40:01,435 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:40:01,437 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:40:01,438 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:40:01,438 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:40:01,438 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:40:01,438 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:40:01,438 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:40:01,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:40:01,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:40:01,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:40:01,531 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:40:01,531 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:40:01,532 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/terminator_02_true-unreach-call_true-termination.i [2018-10-22 15:40:01,610 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0a61abc97/61303baae62e4fbdba23a103b05c0e24/FLAGc824254e0 [2018-10-22 15:40:02,109 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:40:02,111 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02_true-unreach-call_true-termination.i [2018-10-22 15:40:02,117 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0a61abc97/61303baae62e4fbdba23a103b05c0e24/FLAGc824254e0 [2018-10-22 15:40:02,136 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0a61abc97/61303baae62e4fbdba23a103b05c0e24 [2018-10-22 15:40:02,149 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:40:02,151 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:40:02,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:40:02,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:40:02,157 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:40:02,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:40:02" (1/1) ... [2018-10-22 15:40:02,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd08af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02, skipping insertion in model container [2018-10-22 15:40:02,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:40:02" (1/1) ... [2018-10-22 15:40:02,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:40:02,201 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:40:02,387 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:40:02,394 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:40:02,424 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:40:02,443 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:40:02,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02 WrapperNode [2018-10-22 15:40:02,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:40:02,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:40:02,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:40:02,446 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:40:02,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02" (1/1) ... [2018-10-22 15:40:02,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02" (1/1) ... [2018-10-22 15:40:02,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:40:02,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:40:02,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:40:02,481 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:40:02,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02" (1/1) ... [2018-10-22 15:40:02,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02" (1/1) ... [2018-10-22 15:40:02,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02" (1/1) ... [2018-10-22 15:40:02,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02" (1/1) ... [2018-10-22 15:40:02,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02" (1/1) ... [2018-10-22 15:40:02,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02" (1/1) ... [2018-10-22 15:40:02,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02" (1/1) ... [2018-10-22 15:40:02,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:40:02,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:40:02,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:40:02,508 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:40:02,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02" (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 15:40:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:40:02,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:40:03,013 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:40:03,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:40:03 BoogieIcfgContainer [2018-10-22 15:40:03,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:40:03,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:40:03,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:40:03,030 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:40:03,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:40:02" (1/3) ... [2018-10-22 15:40:03,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6652739e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:40:03, skipping insertion in model container [2018-10-22 15:40:03,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:40:02" (2/3) ... [2018-10-22 15:40:03,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6652739e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:40:03, skipping insertion in model container [2018-10-22 15:40:03,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:40:03" (3/3) ... [2018-10-22 15:40:03,034 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02_true-unreach-call_true-termination.i [2018-10-22 15:40:03,054 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:40:03,065 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:40:03,090 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:40:03,130 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:40:03,131 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:40:03,131 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:40:03,131 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:40:03,131 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:40:03,132 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:40:03,132 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:40:03,132 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:40:03,132 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:40:03,148 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-10-22 15:40:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-22 15:40:03,156 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:40:03,158 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:40:03,161 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:40:03,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:40:03,169 INFO L82 PathProgramCache]: Analyzing trace with hash 766233521, now seen corresponding path program 1 times [2018-10-22 15:40:03,171 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:40:03,171 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:40:03,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:40:03,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:40:03,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:40:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:40:03,292 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 15:40:03,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:40:03,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:40:03,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:40:03,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:40:03,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:40:03,324 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2018-10-22 15:40:03,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:40:03,345 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2018-10-22 15:40:03,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:40:03,348 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-10-22 15:40:03,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:40:03,360 INFO L225 Difference]: With dead ends: 25 [2018-10-22 15:40:03,361 INFO L226 Difference]: Without dead ends: 13 [2018-10-22 15:40:03,365 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 15:40:03,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-10-22 15:40:03,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-10-22 15:40:03,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-22 15:40:03,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-10-22 15:40:03,412 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2018-10-22 15:40:03,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:40:03,413 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-10-22 15:40:03,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:40:03,413 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-10-22 15:40:03,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-22 15:40:03,415 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:40:03,415 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:40:03,416 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:40:03,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:40:03,417 INFO L82 PathProgramCache]: Analyzing trace with hash -2029854309, now seen corresponding path program 1 times [2018-10-22 15:40:03,417 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:40:03,417 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:40:03,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:40:03,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:40:03,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:40:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:40:03,747 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 15:40:03,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:40:03,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-22 15:40:03,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 15:40:03,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 15:40:03,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:40:03,750 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 5 states. [2018-10-22 15:40:03,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:40:03,940 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-10-22 15:40:03,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 15:40:03,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-10-22 15:40:03,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:40:03,941 INFO L225 Difference]: With dead ends: 19 [2018-10-22 15:40:03,942 INFO L226 Difference]: Without dead ends: 15 [2018-10-22 15:40:03,944 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-22 15:40:03,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-22 15:40:03,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-10-22 15:40:03,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-22 15:40:03,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-10-22 15:40:03,949 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2018-10-22 15:40:03,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:40:03,950 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-10-22 15:40:03,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 15:40:03,950 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-10-22 15:40:03,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-22 15:40:03,951 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:40:03,951 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:40:03,951 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:40:03,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:40:03,952 INFO L82 PathProgramCache]: Analyzing trace with hash -931308970, now seen corresponding path program 1 times [2018-10-22 15:40:03,952 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:40:03,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:40:03,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:40:03,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:40:03,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:40:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:40:04,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:40:04,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:40:04,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-22 15:40:04,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-22 15:40:04,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-22 15:40:04,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-22 15:40:04,112 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 6 states. [2018-10-22 15:40:04,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:40:04,494 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2018-10-22 15:40:04,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-22 15:40:04,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-10-22 15:40:04,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:40:04,495 INFO L225 Difference]: With dead ends: 18 [2018-10-22 15:40:04,495 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 15:40:04,496 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-22 15:40:04,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 15:40:04,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 15:40:04,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 15:40:04,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 15:40:04,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-10-22 15:40:04,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:40:04,497 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 15:40:04,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-22 15:40:04,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 15:40:04,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 15:40:04,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 15:40:04,533 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-10-22 15:40:04,534 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-22 15:40:04,534 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-22 15:40:04,534 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:40:04,534 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2018-10-22 15:40:04,535 INFO L421 ceAbstractionStarter]: At program point L24-2(lines 21 30) the Hoare annotation is: (or (<= ULTIMATE.start_main_~x~0 98) (< 100 ULTIMATE.start_main_~z~0)) [2018-10-22 15:40:04,535 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-10-22 15:40:04,535 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:40:04,535 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 30) no Hoare annotation was computed. [2018-10-22 15:40:04,535 INFO L425 ceAbstractionStarter]: For program point L21-3(lines 21 30) no Hoare annotation was computed. [2018-10-22 15:40:04,535 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-10-22 15:40:04,536 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-22 15:40:04,536 INFO L428 ceAbstractionStarter]: At program point L5-2(lines 4 9) the Hoare annotation is: true [2018-10-22 15:40:04,536 INFO L428 ceAbstractionStarter]: At program point L34(lines 13 35) the Hoare annotation is: true [2018-10-22 15:40:04,536 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-10-22 15:40:04,536 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-10-22 15:40:04,536 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-22 15:40:04,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:40:04 BoogieIcfgContainer [2018-10-22 15:40:04,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:40:04,552 INFO L168 Benchmark]: Toolchain (without parser) took 2402.24 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -720.7 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2018-10-22 15:40:04,555 INFO L168 Benchmark]: CDTParser took 0.35 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 15:40:04,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.68 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 15:40:04,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.24 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 15:40:04,557 INFO L168 Benchmark]: Boogie Preprocessor took 25.74 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 15:40:04,558 INFO L168 Benchmark]: RCFGBuilder took 508.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-22 15:40:04,560 INFO L168 Benchmark]: TraceAbstraction took 1534.80 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. [2018-10-22 15:40:04,565 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 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 292.68 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 35.24 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 25.74 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 508.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1534.80 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 21]: Loop Invariant Derived loop invariant: x <= 98 || 100 < z - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 SDtfs, 13 SDslu, 38 SDs, 0 SdLazy, 53 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 9 HoareAnnotationTreeSize, 3 FomulaSimplifications, 7 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 580 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...