java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 11:19:58,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 11:19:58,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 11:19:58,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 11:19:58,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 11:19:58,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 11:19:58,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 11:19:58,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 11:19:58,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 11:19:58,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 11:19:58,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 11:19:58,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 11:19:58,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 11:19:58,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 11:19:58,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 11:19:58,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 11:19:58,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 11:19:58,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 11:19:58,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 11:19:58,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 11:19:58,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 11:19:58,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 11:19:58,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 11:19:58,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 11:19:58,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 11:19:58,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 11:19:58,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 11:19:58,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 11:19:58,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 11:19:58,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 11:19:58,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 11:19:58,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 11:19:58,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 11:19:58,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 11:19:58,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 11:19:58,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 11:19:58,460 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-02 11:19:58,475 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 11:19:58,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 11:19:58,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 11:19:58,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 11:19:58,477 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 11:19:58,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 11:19:58,478 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 11:19:58,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 11:19:58,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 11:19:58,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 11:19:58,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 11:19:58,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 11:19:58,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 11:19:58,479 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 11:19:58,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 11:19:58,479 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 11:19:58,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 11:19:58,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 11:19:58,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 11:19:58,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 11:19:58,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 11:19:58,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 11:19:58,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 11:19:58,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 11:19:58,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 11:19:58,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 11:19:58,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 11:19:58,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 11:19:58,482 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 11:19:58,521 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 11:19:58,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 11:19:58,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 11:19:58,536 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 11:19:58,537 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 11:19:58,538 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-10-02 11:19:58,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86f3b2c27/a97d4753b6ed4be794339314a73b929c/FLAGb7486099e [2019-10-02 11:19:59,028 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 11:19:59,030 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-10-02 11:19:59,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86f3b2c27/a97d4753b6ed4be794339314a73b929c/FLAGb7486099e [2019-10-02 11:19:59,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86f3b2c27/a97d4753b6ed4be794339314a73b929c [2019-10-02 11:19:59,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 11:19:59,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 11:19:59,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 11:19:59,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 11:19:59,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 11:19:59,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:19:59" (1/1) ... [2019-10-02 11:19:59,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ba53ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:19:59, skipping insertion in model container [2019-10-02 11:19:59,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:19:59" (1/1) ... [2019-10-02 11:19:59,451 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 11:19:59,466 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 11:19:59,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:19:59,664 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 11:19:59,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:19:59,690 INFO L192 MainTranslator]: Completed translation [2019-10-02 11:19:59,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:19:59 WrapperNode [2019-10-02 11:19:59,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 11:19:59,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 11:19:59,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 11:19:59,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 11:19:59,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:19:59" (1/1) ... [2019-10-02 11:19:59,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:19:59" (1/1) ... [2019-10-02 11:19:59,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:19:59" (1/1) ... [2019-10-02 11:19:59,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:19:59" (1/1) ... [2019-10-02 11:19:59,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:19:59" (1/1) ... [2019-10-02 11:19:59,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:19:59" (1/1) ... [2019-10-02 11:19:59,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:19:59" (1/1) ... [2019-10-02 11:19:59,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 11:19:59,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 11:19:59,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 11:19:59,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 11:19:59,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:19:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 11:19:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 11:19:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 11:19:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 11:19:59,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 11:19:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 11:19:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 11:19:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 11:19:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 11:19:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 11:19:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 11:19:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 11:20:00,075 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 11:20:00,076 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 11:20:00,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:20:00 BoogieIcfgContainer [2019-10-02 11:20:00,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 11:20:00,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 11:20:00,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 11:20:00,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 11:20:00,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:19:59" (1/3) ... [2019-10-02 11:20:00,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2231e7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:20:00, skipping insertion in model container [2019-10-02 11:20:00,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:19:59" (2/3) ... [2019-10-02 11:20:00,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2231e7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:20:00, skipping insertion in model container [2019-10-02 11:20:00,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:20:00" (3/3) ... [2019-10-02 11:20:00,087 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2019-10-02 11:20:00,097 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 11:20:00,111 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 11:20:00,146 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 11:20:00,186 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 11:20:00,187 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 11:20:00,188 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 11:20:00,188 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 11:20:00,188 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 11:20:00,188 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 11:20:00,188 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 11:20:00,188 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 11:20:00,189 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 11:20:00,209 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-02 11:20:00,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-02 11:20:00,215 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:20:00,216 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:20:00,223 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:20:00,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:20:00,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1772153714, now seen corresponding path program 1 times [2019-10-02 11:20:00,233 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:20:00,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:20:00,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:20:00,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:20:00,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:20:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:20:00,610 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2019-10-02 11:20:00,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:20:00,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:20:00,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 11:20:00,744 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 11:20:00,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 11:20:00,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 11:20:00,762 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2019-10-02 11:20:01,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:20:01,132 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2019-10-02 11:20:01,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 11:20:01,136 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-10-02 11:20:01,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:20:01,146 INFO L225 Difference]: With dead ends: 47 [2019-10-02 11:20:01,147 INFO L226 Difference]: Without dead ends: 15 [2019-10-02 11:20:01,153 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-10-02 11:20:01,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-02 11:20:01,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-02 11:20:01,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-02 11:20:01,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-10-02 11:20:01,208 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-10-02 11:20:01,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:20:01,209 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-10-02 11:20:01,209 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 11:20:01,209 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-10-02 11:20:01,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-02 11:20:01,211 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:20:01,212 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:20:01,212 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:20:01,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:20:01,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1871056931, now seen corresponding path program 1 times [2019-10-02 11:20:01,215 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:20:01,215 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:20:01,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:20:01,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:20:01,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:20:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:20:01,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:20:01,447 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 11:20:01,448 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 11:20:01,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:20:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:20:01,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-02 11:20:01,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:20:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:20:01,676 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 11:20:01,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2019-10-02 11:20:01,677 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 11:20:01,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 11:20:01,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-02 11:20:01,678 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 14 states. [2019-10-02 11:20:01,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:20:01,810 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-10-02 11:20:01,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 11:20:01,810 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2019-10-02 11:20:01,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:20:01,811 INFO L225 Difference]: With dead ends: 22 [2019-10-02 11:20:01,812 INFO L226 Difference]: Without dead ends: 16 [2019-10-02 11:20:01,813 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2019-10-02 11:20:01,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-02 11:20:01,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-02 11:20:01,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-02 11:20:01,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-10-02 11:20:01,818 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2019-10-02 11:20:01,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:20:01,819 INFO L475 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-10-02 11:20:01,819 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 11:20:01,819 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-10-02 11:20:01,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-02 11:20:01,820 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:20:01,820 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:20:01,821 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:20:01,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:20:01,821 INFO L82 PathProgramCache]: Analyzing trace with hash -642089362, now seen corresponding path program 2 times [2019-10-02 11:20:01,821 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:20:01,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:20:01,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:20:01,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:20:01,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:20:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:20:02,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:20:02,014 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 11:20:02,015 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-10-02 11:20:02,044 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 11:20:02,065 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 11:20:02,066 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 11:20:02,068 WARN L254 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 28 conjunts are in the unsatisfiable core [2019-10-02 11:20:02,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:20:02,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:20:02,220 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 11:20:02,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-10-02 11:20:02,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-02 11:20:02,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-02 11:20:02,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2019-10-02 11:20:02,223 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 16 states. [2019-10-02 11:20:02,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:20:02,394 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-10-02 11:20:02,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-02 11:20:02,395 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 15 [2019-10-02 11:20:02,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:20:02,396 INFO L225 Difference]: With dead ends: 26 [2019-10-02 11:20:02,396 INFO L226 Difference]: Without dead ends: 18 [2019-10-02 11:20:02,397 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2019-10-02 11:20:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-02 11:20:02,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-02 11:20:02,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-02 11:20:02,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-10-02 11:20:02,404 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-10-02 11:20:02,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:20:02,405 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-10-02 11:20:02,405 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-02 11:20:02,405 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-10-02 11:20:02,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-02 11:20:02,406 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:20:02,407 INFO L411 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:20:02,407 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:20:02,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:20:02,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1276972978, now seen corresponding path program 3 times [2019-10-02 11:20:02,408 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:20:02,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:20:02,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:20:02,412 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 11:20:02,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:20:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:20:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-02 11:20:02,656 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 11:20:02,656 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 11:20:02,680 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-02 11:20:02,695 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-02 11:20:02,696 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 11:20:02,697 WARN L254 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 40 conjunts are in the unsatisfiable core [2019-10-02 11:20:02,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:20:02,910 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:20:02,914 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 11:20:02,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2019-10-02 11:20:02,915 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-02 11:20:02,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-02 11:20:02,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-10-02 11:20:02,916 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 19 states. [2019-10-02 11:20:03,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:20:03,123 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-10-02 11:20:03,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 11:20:03,124 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 17 [2019-10-02 11:20:03,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:20:03,124 INFO L225 Difference]: With dead ends: 21 [2019-10-02 11:20:03,125 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 11:20:03,125 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2019-10-02 11:20:03,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 11:20:03,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 11:20:03,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 11:20:03,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 11:20:03,126 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-02 11:20:03,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:20:03,127 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 11:20:03,127 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-02 11:20:03,127 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 11:20:03,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 11:20:03,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-02 11:20:03,222 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-02 11:20:03,222 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:20:03,222 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:20:03,222 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-02 11:20:03,222 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-02 11:20:03,223 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-02 11:20:03,223 INFO L439 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (+ main_~y~0 main_~z~0))) (and (<= .cse0 0) (<= 0 .cse0))) [2019-10-02 11:20:03,223 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2019-10-02 11:20:03,223 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 main_~y~0 main_~z~0)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-10-02 11:20:03,223 INFO L443 ceAbstractionStarter]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2019-10-02 11:20:03,224 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-10-02 11:20:03,224 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2019-10-02 11:20:03,224 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2019-10-02 11:20:03,224 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-10-02 11:20:03,224 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-02 11:20:03,224 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-02 11:20:03,225 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-02 11:20:03,225 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-02 11:20:03,225 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-02 11:20:03,225 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-02 11:20:03,225 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-02 11:20:03,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:20:03 BoogieIcfgContainer [2019-10-02 11:20:03,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 11:20:03,241 INFO L168 Benchmark]: Toolchain (without parser) took 3806.35 ms. Allocated memory was 137.4 MB in the beginning and 270.0 MB in the end (delta: 132.6 MB). Free memory was 84.7 MB in the beginning and 187.9 MB in the end (delta: -103.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2019-10-02 11:20:03,242 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-02 11:20:03,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.29 ms. Allocated memory is still 137.4 MB. Free memory was 84.5 MB in the beginning and 75.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-02 11:20:03,244 INFO L168 Benchmark]: Boogie Preprocessor took 127.95 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 75.0 MB in the beginning and 175.5 MB in the end (delta: -100.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-10-02 11:20:03,245 INFO L168 Benchmark]: RCFGBuilder took 258.33 ms. Allocated memory is still 198.2 MB. Free memory was 175.5 MB in the beginning and 162.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2019-10-02 11:20:03,246 INFO L168 Benchmark]: TraceAbstraction took 3160.49 ms. Allocated memory was 198.2 MB in the beginning and 270.0 MB in the end (delta: 71.8 MB). Free memory was 162.8 MB in the beginning and 187.9 MB in the end (delta: -25.1 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2019-10-02 11:20:03,250 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 255.29 ms. Allocated memory is still 137.4 MB. Free memory was 84.5 MB in the beginning and 75.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.95 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 75.0 MB in the beginning and 175.5 MB in the end (delta: -100.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 258.33 ms. Allocated memory is still 198.2 MB. Free memory was 175.5 MB in the beginning and 162.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3160.49 ms. Allocated memory was 198.2 MB in the beginning and 270.0 MB in the end (delta: 71.8 MB). Free memory was 162.8 MB in the beginning and 187.9 MB in the end (delta: -25.1 MB). Peak memory consumption was 46.7 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: 19]: Loop Invariant Derived loop invariant: x + j <= i + y + z && i + y + z <= x + j - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 40 SDslu, 325 SDs, 0 SdLazy, 325 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 13 PreInvPairs, 24 NumberOfFragments, 33 HoareAnnotationTreeSize, 13 FomulaSimplifications, 61 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 191 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 9619 SizeOfPredicates, 15 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...