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-acceleration/array_3-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 19:26:44,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 19:26:44,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 19:26:44,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 19:26:44,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 19:26:44,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 19:26:44,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 19:26:44,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 19:26:44,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 19:26:44,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 19:26:44,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 19:26:44,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 19:26:44,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 19:26:44,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 19:26:44,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 19:26:44,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 19:26:44,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 19:26:44,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 19:26:44,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 19:26:44,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 19:26:44,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 19:26:44,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 19:26:44,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 19:26:44,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 19:26:44,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 19:26:44,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 19:26:44,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 19:26:44,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 19:26:44,747 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 [2019-09-03 19:26:44,761 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 19:26:44,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 19:26:44,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-03 19:26:44,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-03 19:26:44,762 INFO L138 SettingsManager]: * Use SBE=true [2019-09-03 19:26:44,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 19:26:44,763 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 19:26:44,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-03 19:26:44,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 19:26:44,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 19:26:44,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 19:26:44,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 19:26:44,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 19:26:44,764 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 19:26:44,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 19:26:44,765 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-03 19:26:44,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 19:26:44,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 19:26:44,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 19:26:44,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-03 19:26:44,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-03 19:26:44,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 19:26:44,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 19:26:44,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 19:26:44,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-03 19:26:44,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-03 19:26:44,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 19:26:44,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 19:26:44,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-03 19:26:44,795 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 19:26:44,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 19:26:44,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 19:26:44,813 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 19:26:44,814 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 19:26:44,814 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_3-1.i [2019-09-03 19:26:44,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b642b906a/cb116a07f4bc4c36afd17ac3df2b7e07/FLAG9b45c7300 [2019-09-03 19:26:45,301 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 19:26:45,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_3-1.i [2019-09-03 19:26:45,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b642b906a/cb116a07f4bc4c36afd17ac3df2b7e07/FLAG9b45c7300 [2019-09-03 19:26:45,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b642b906a/cb116a07f4bc4c36afd17ac3df2b7e07 [2019-09-03 19:26:45,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 19:26:45,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 19:26:45,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 19:26:45,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 19:26:45,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 19:26:45,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 07:26:45" (1/1) ... [2019-09-03 19:26:45,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f9c9f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:26:45, skipping insertion in model container [2019-09-03 19:26:45,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 07:26:45" (1/1) ... [2019-09-03 19:26:45,738 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 19:26:45,754 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 19:26:45,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 19:26:45,908 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 19:26:45,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 19:26:45,943 INFO L192 MainTranslator]: Completed translation [2019-09-03 19:26:45,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:26:45 WrapperNode [2019-09-03 19:26:45,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 19:26:45,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 19:26:45,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 19:26:45,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 19:26:46,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:26:45" (1/1) ... [2019-09-03 19:26:46,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:26:45" (1/1) ... [2019-09-03 19:26:46,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:26:45" (1/1) ... [2019-09-03 19:26:46,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:26:45" (1/1) ... [2019-09-03 19:26:46,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:26:45" (1/1) ... [2019-09-03 19:26:46,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:26:45" (1/1) ... [2019-09-03 19:26:46,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:26:45" (1/1) ... [2019-09-03 19:26:46,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 19:26:46,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 19:26:46,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 19:26:46,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 19:26:46,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:26:45" (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 [2019-09-03 19:26:46,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 19:26:46,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 19:26:46,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 19:26:46,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 19:26:46,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 19:26:46,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 19:26:46,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 19:26:46,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 19:26:46,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-03 19:26:46,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-03 19:26:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-03 19:26:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-03 19:26:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 19:26:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 19:26:46,328 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 19:26:46,329 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-03 19:26:46,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 07:26:46 BoogieIcfgContainer [2019-09-03 19:26:46,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 19:26:46,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-03 19:26:46,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-03 19:26:46,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-03 19:26:46,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.09 07:26:45" (1/3) ... [2019-09-03 19:26:46,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a8e0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 07:26:46, skipping insertion in model container [2019-09-03 19:26:46,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:26:45" (2/3) ... [2019-09-03 19:26:46,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a8e0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 07:26:46, skipping insertion in model container [2019-09-03 19:26:46,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 07:26:46" (3/3) ... [2019-09-03 19:26:46,338 INFO L109 eAbstractionObserver]: Analyzing ICFG array_3-1.i [2019-09-03 19:26:46,347 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-03 19:26:46,354 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-03 19:26:46,370 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-03 19:26:46,394 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-03 19:26:46,395 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-03 19:26:46,395 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-03 19:26:46,395 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-03 19:26:46,395 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-03 19:26:46,395 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-03 19:26:46,396 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-03 19:26:46,396 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-03 19:26:46,396 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-03 19:26:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-09-03 19:26:46,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-03 19:26:46,415 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:26:46,415 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:26:46,417 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:26:46,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:26:46,422 INFO L82 PathProgramCache]: Analyzing trace with hash -413900697, now seen corresponding path program 1 times [2019-09-03 19:26:46,424 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:26:46,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:26:46,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:26:46,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:26:46,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:26:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:26:46,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:26:46,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 19:26:46,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-03 19:26:46,536 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-03 19:26:46,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-03 19:26:46,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-03 19:26:46,549 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-09-03 19:26:46,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:26:46,572 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2019-09-03 19:26:46,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-03 19:26:46,574 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-09-03 19:26:46,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:26:46,582 INFO L225 Difference]: With dead ends: 42 [2019-09-03 19:26:46,582 INFO L226 Difference]: Without dead ends: 18 [2019-09-03 19:26:46,586 INFO L628 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 [2019-09-03 19:26:46,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-03 19:26:46,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-03 19:26:46,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-03 19:26:46,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-09-03 19:26:46,627 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 13 [2019-09-03 19:26:46,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:26:46,627 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-09-03 19:26:46,628 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-03 19:26:46,628 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-09-03 19:26:46,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-03 19:26:46,629 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:26:46,629 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:26:46,629 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:26:46,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:26:46,630 INFO L82 PathProgramCache]: Analyzing trace with hash 2053026861, now seen corresponding path program 1 times [2019-09-03 19:26:46,630 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:26:46,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:26:46,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:26:46,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:26:46,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:26:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:26:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:26:46,689 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 19:26:46,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-03 19:26:46,692 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-03 19:26:46,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-03 19:26:46,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-03 19:26:46,696 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2019-09-03 19:26:46,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:26:46,776 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2019-09-03 19:26:46,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-03 19:26:46,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-09-03 19:26:46,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:26:46,780 INFO L225 Difference]: With dead ends: 35 [2019-09-03 19:26:46,780 INFO L226 Difference]: Without dead ends: 25 [2019-09-03 19:26:46,781 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-03 19:26:46,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-09-03 19:26:46,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2019-09-03 19:26:46,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-03 19:26:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-09-03 19:26:46,789 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2019-09-03 19:26:46,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:26:46,790 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-09-03 19:26:46,790 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-03 19:26:46,791 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-09-03 19:26:46,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-03 19:26:46,795 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:26:46,795 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:26:46,796 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:26:46,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:26:46,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1766388751, now seen corresponding path program 1 times [2019-09-03 19:26:46,797 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:26:46,797 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:26:46,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:26:46,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:26:46,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:26:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:26:46,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-03 19:26:46,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 19:26:46,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-03 19:26:46,943 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-03 19:26:46,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-03 19:26:46,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-03 19:26:46,944 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 5 states. [2019-09-03 19:26:47,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:26:47,005 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-09-03 19:26:47,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-03 19:26:47,006 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-09-03 19:26:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:26:47,007 INFO L225 Difference]: With dead ends: 29 [2019-09-03 19:26:47,008 INFO L226 Difference]: Without dead ends: 24 [2019-09-03 19:26:47,008 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-03 19:26:47,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-09-03 19:26:47,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2019-09-03 19:26:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-03 19:26:47,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-09-03 19:26:47,014 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 16 [2019-09-03 19:26:47,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:26:47,015 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-09-03 19:26:47,015 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-03 19:26:47,015 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-09-03 19:26:47,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-03 19:26:47,016 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:26:47,016 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:26:47,017 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:26:47,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:26:47,017 INFO L82 PathProgramCache]: Analyzing trace with hash -955555818, now seen corresponding path program 1 times [2019-09-03 19:26:47,018 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:26:47,018 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:26:47,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:26:47,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:26:47,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:26:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:26:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-03 19:26:47,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 19:26:47,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-03 19:26:47,114 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-03 19:26:47,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-03 19:26:47,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-09-03 19:26:47,116 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2019-09-03 19:26:47,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:26:47,192 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2019-09-03 19:26:47,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-03 19:26:47,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-09-03 19:26:47,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:26:47,193 INFO L225 Difference]: With dead ends: 35 [2019-09-03 19:26:47,193 INFO L226 Difference]: Without dead ends: 0 [2019-09-03 19:26:47,194 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-03 19:26:47,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-03 19:26:47,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-03 19:26:47,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-03 19:26:47,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-03 19:26:47,195 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-09-03 19:26:47,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:26:47,195 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-03 19:26:47,196 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-03 19:26:47,196 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-03 19:26:47,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-03 19:26:47,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-03 19:26:47,241 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-03 19:26:47,241 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-03 19:26:47,241 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-03 19:26:47,242 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-03 19:26:47,242 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-03 19:26:47,242 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-03 19:26:47,242 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-03 19:26:47,242 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 23) no Hoare annotation was computed. [2019-09-03 19:26:47,242 INFO L443 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-09-03 19:26:47,242 INFO L443 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-09-03 19:26:47,243 INFO L439 ceAbstractionStarter]: At program point L17-4(lines 17 21) the Hoare annotation is: (<= main_~i~0 1023) [2019-09-03 19:26:47,243 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 9 23) no Hoare annotation was computed. [2019-09-03 19:26:47,243 INFO L439 ceAbstractionStarter]: At program point L17-5(lines 17 21) the Hoare annotation is: (<= main_~i~0 1023) [2019-09-03 19:26:47,243 INFO L443 ceAbstractionStarter]: For program point L13-2(lines 13 15) no Hoare annotation was computed. [2019-09-03 19:26:47,244 INFO L446 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: true [2019-09-03 19:26:47,245 INFO L443 ceAbstractionStarter]: For program point L13-4(lines 13 15) no Hoare annotation was computed. [2019-09-03 19:26:47,245 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 23) the Hoare annotation is: true [2019-09-03 19:26:47,245 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-09-03 19:26:47,245 INFO L443 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2019-09-03 19:26:47,245 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-03 19:26:47,245 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-03 19:26:47,246 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-03 19:26:47,246 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-03 19:26:47,246 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-03 19:26:47,246 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-03 19:26:47,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.09 07:26:47 BoogieIcfgContainer [2019-09-03 19:26:47,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-03 19:26:47,266 INFO L168 Benchmark]: Toolchain (without parser) took 1541.96 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 85.3 MB in the beginning and 106.4 MB in the end (delta: -21.1 MB). Peak memory consumption was 39.2 MB. Max. memory is 7.1 GB. [2019-09-03 19:26:47,267 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 103.9 MB in the beginning and 103.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 19:26:47,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.62 ms. Allocated memory is still 137.9 MB. Free memory was 85.1 MB in the beginning and 75.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-03 19:26:47,269 INFO L168 Benchmark]: Boogie Preprocessor took 120.11 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 75.5 MB in the beginning and 174.8 MB in the end (delta: -99.3 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-03 19:26:47,271 INFO L168 Benchmark]: RCFGBuilder took 265.27 ms. Allocated memory is still 198.2 MB. Free memory was 174.8 MB in the beginning and 161.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-09-03 19:26:47,272 INFO L168 Benchmark]: TraceAbstraction took 932.25 ms. Allocated memory is still 198.2 MB. Free memory was 161.3 MB in the beginning and 106.4 MB in the end (delta: 54.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. [2019-09-03 19:26:47,282 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 137.9 MB. Free memory was 103.9 MB in the beginning and 103.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 220.62 ms. Allocated memory is still 137.9 MB. Free memory was 85.1 MB in the beginning and 75.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.11 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 75.5 MB in the beginning and 174.8 MB in the end (delta: -99.3 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 265.27 ms. Allocated memory is still 198.2 MB. Free memory was 174.8 MB in the beginning and 161.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 932.25 ms. Allocated memory is still 198.2 MB. Free memory was 161.3 MB in the beginning and 106.4 MB in the end (delta: 54.9 MB). Peak memory consumption was 54.9 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: 17]: Loop Invariant Derived loop invariant: i <= 1023 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 18 SDslu, 82 SDs, 0 SdLazy, 69 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 12 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 1371 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...