java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/hhk2008_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 05:07:14,144 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 05:07:14,146 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 05:07:14,158 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 05:07:14,159 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 05:07:14,160 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 05:07:14,161 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 05:07:14,163 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 05:07:14,164 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 05:07:14,165 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 05:07:14,166 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 05:07:14,167 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 05:07:14,167 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 05:07:14,169 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 05:07:14,170 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 05:07:14,171 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 05:07:14,171 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 05:07:14,173 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 05:07:14,175 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 05:07:14,177 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 05:07:14,178 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 05:07:14,179 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 05:07:14,182 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 05:07:14,182 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 05:07:14,182 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 05:07:14,183 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 05:07:14,184 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 05:07:14,185 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 05:07:14,186 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 05:07:14,187 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 05:07:14,187 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 05:07:14,188 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 05:07:14,188 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 05:07:14,189 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 05:07:14,190 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 05:07:14,190 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 05:07:14,191 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 05:07:14,206 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 05:07:14,206 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 05:07:14,207 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 05:07:14,207 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 05:07:14,207 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 05:07:14,208 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 05:07:14,208 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 05:07:14,208 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 05:07:14,208 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 05:07:14,208 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 05:07:14,209 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 05:07:14,209 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 05:07:14,209 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 05:07:14,210 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 05:07:14,210 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 05:07:14,210 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 05:07:14,210 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 05:07:14,210 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 05:07:14,211 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 05:07:14,211 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 05:07:14,211 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 05:07:14,211 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 05:07:14,211 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 05:07:14,212 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 05:07:14,212 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 05:07:14,212 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 05:07:14,212 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 05:07:14,212 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 05:07:14,213 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 05:07:14,213 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 05:07:14,213 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 05:07:14,213 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 05:07:14,213 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 05:07:14,214 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 05:07:14,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 05:07:14,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 05:07:14,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 05:07:14,293 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 05:07:14,294 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 05:07:14,294 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/hhk2008_true-unreach-call_true-termination.c.i [2018-11-07 05:07:14,354 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dea01399/8df4dadb15734fa18e2204e73d01fa2a/FLAGcc133d652 [2018-11-07 05:07:14,800 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 05:07:14,801 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008_true-unreach-call_true-termination.c.i [2018-11-07 05:07:14,807 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dea01399/8df4dadb15734fa18e2204e73d01fa2a/FLAGcc133d652 [2018-11-07 05:07:14,822 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dea01399/8df4dadb15734fa18e2204e73d01fa2a [2018-11-07 05:07:14,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 05:07:14,837 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 05:07:14,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 05:07:14,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 05:07:14,842 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 05:07:14,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:07:14" (1/1) ... [2018-11-07 05:07:14,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ede70b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:14, skipping insertion in model container [2018-11-07 05:07:14,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:07:14" (1/1) ... [2018-11-07 05:07:14,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 05:07:14,879 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 05:07:15,116 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 05:07:15,122 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 05:07:15,142 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 05:07:15,161 INFO L193 MainTranslator]: Completed translation [2018-11-07 05:07:15,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15 WrapperNode [2018-11-07 05:07:15,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 05:07:15,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 05:07:15,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 05:07:15,163 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 05:07:15,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15" (1/1) ... [2018-11-07 05:07:15,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15" (1/1) ... [2018-11-07 05:07:15,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 05:07:15,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 05:07:15,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 05:07:15,188 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 05:07:15,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15" (1/1) ... [2018-11-07 05:07:15,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15" (1/1) ... [2018-11-07 05:07:15,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15" (1/1) ... [2018-11-07 05:07:15,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15" (1/1) ... [2018-11-07 05:07:15,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15" (1/1) ... [2018-11-07 05:07:15,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15" (1/1) ... [2018-11-07 05:07:15,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15" (1/1) ... [2018-11-07 05:07:15,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 05:07:15,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 05:07:15,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 05:07:15,212 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 05:07:15,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 05:07:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 05:07:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 05:07:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 05:07:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 05:07:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 05:07:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 05:07:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 05:07:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 05:07:15,544 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 05:07:15,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:07:15 BoogieIcfgContainer [2018-11-07 05:07:15,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 05:07:15,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 05:07:15,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 05:07:15,550 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 05:07:15,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:07:14" (1/3) ... [2018-11-07 05:07:15,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62794314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:07:15, skipping insertion in model container [2018-11-07 05:07:15,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:07:15" (2/3) ... [2018-11-07 05:07:15,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62794314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:07:15, skipping insertion in model container [2018-11-07 05:07:15,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:07:15" (3/3) ... [2018-11-07 05:07:15,554 INFO L112 eAbstractionObserver]: Analyzing ICFG hhk2008_true-unreach-call_true-termination.c.i [2018-11-07 05:07:15,564 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 05:07:15,572 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 05:07:15,590 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 05:07:15,625 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 05:07:15,625 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 05:07:15,625 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 05:07:15,625 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 05:07:15,625 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 05:07:15,626 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 05:07:15,626 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 05:07:15,626 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 05:07:15,646 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-07 05:07:15,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-07 05:07:15,652 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:07:15,653 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:07:15,655 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:07:15,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:07:15,661 INFO L82 PathProgramCache]: Analyzing trace with hash -237401155, now seen corresponding path program 1 times [2018-11-07 05:07:15,664 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:07:15,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:07:15,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:07:15,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:07:15,720 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:07:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:07:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:07:15,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 05:07:15,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-07 05:07:15,795 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:07:15,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-07 05:07:15,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-07 05:07:15,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 05:07:15,815 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-11-07 05:07:15,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:07:15,835 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-11-07 05:07:15,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-07 05:07:15,837 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-07 05:07:15,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:07:15,844 INFO L225 Difference]: With dead ends: 33 [2018-11-07 05:07:15,845 INFO L226 Difference]: Without dead ends: 14 [2018-11-07 05:07:15,848 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 05:07:15,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-07 05:07:15,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-07 05:07:15,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-07 05:07:15,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-07 05:07:15,886 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-11-07 05:07:15,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:07:15,887 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-07 05:07:15,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-07 05:07:15,887 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-07 05:07:15,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-07 05:07:15,888 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:07:15,888 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:07:15,888 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:07:15,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:07:15,889 INFO L82 PathProgramCache]: Analyzing trace with hash 979745029, now seen corresponding path program 1 times [2018-11-07 05:07:15,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:07:15,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:07:15,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:07:15,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:07:15,891 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:07:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:07:16,309 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-11-07 05:07:16,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:07:16,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 05:07:16,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 05:07:16,448 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:07:16,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 05:07:16,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 05:07:16,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-07 05:07:16,451 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2018-11-07 05:07:16,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:07:16,577 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-11-07 05:07:16,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 05:07:16,578 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-07 05:07:16,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:07:16,580 INFO L225 Difference]: With dead ends: 21 [2018-11-07 05:07:16,580 INFO L226 Difference]: Without dead ends: 16 [2018-11-07 05:07:16,581 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-07 05:07:16,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-07 05:07:16,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-07 05:07:16,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-07 05:07:16,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-07 05:07:16,586 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-11-07 05:07:16,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:07:16,587 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-07 05:07:16,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 05:07:16,587 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-07 05:07:16,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-07 05:07:16,588 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:07:16,588 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:07:16,589 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:07:16,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:07:16,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1902568203, now seen corresponding path program 1 times [2018-11-07 05:07:16,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:07:16,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:07:16,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:07:16,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:07:16,591 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:07:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:07:16,836 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-11-07 05:07:16,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:07:16,963 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 05:07:16,963 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 05:07:16,964 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-11-07 05:07:16,966 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [22], [29], [32], [34], [40], [41], [42], [44] [2018-11-07 05:07:17,017 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 05:07:17,017 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 05:07:17,319 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 05:07:17,320 INFO L272 AbstractInterpreter]: Visited 14 different actions 77 times. Merged at 3 different actions 27 times. Widened at 1 different actions 5 times. Found 1 fixpoints after 1 different actions. Largest state had 6 variables. [2018-11-07 05:07:17,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:07:17,335 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 05:07:17,335 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 05:07:17,335 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-11-07 05:07:17,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:07:17,353 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 05:07:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:07:17,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 05:07:17,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:07:17,801 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 05:07:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:07:18,045 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 05:07:18,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2018-11-07 05:07:18,046 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 05:07:18,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 05:07:18,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 05:07:18,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-11-07 05:07:18,048 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 10 states. [2018-11-07 05:07:18,553 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-11-07 05:07:18,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:07:18,668 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-07 05:07:18,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 05:07:18,669 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2018-11-07 05:07:18,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:07:18,669 INFO L225 Difference]: With dead ends: 19 [2018-11-07 05:07:18,669 INFO L226 Difference]: Without dead ends: 0 [2018-11-07 05:07:18,671 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2018-11-07 05:07:18,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-07 05:07:18,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-07 05:07:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-07 05:07:18,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-07 05:07:18,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-07 05:07:18,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:07:18,672 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-07 05:07:18,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 05:07:18,673 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-07 05:07:18,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-07 05:07:18,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-07 05:07:18,790 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-07 05:07:18,790 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-07 05:07:18,790 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-07 05:07:18,791 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-07 05:07:18,791 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-07 05:07:18,791 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-07 05:07:18,791 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 24) the Hoare annotation is: true [2018-11-07 05:07:18,791 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 24) no Hoare annotation was computed. [2018-11-07 05:07:18,791 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-07 05:07:18,791 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 21) no Hoare annotation was computed. [2018-11-07 05:07:18,791 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-07 05:07:18,792 INFO L421 ceAbstractionStarter]: At program point L18-3(lines 18 21) the Hoare annotation is: (let ((.cse1 (+ main_~res~0 main_~cnt~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (< main_~res~0 (+ main_~a~0 main_~b~0 1)) (<= .cse1 .cse0))) [2018-11-07 05:07:18,792 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-07 05:07:18,792 INFO L421 ceAbstractionStarter]: At program point L18-4(lines 18 21) the Hoare annotation is: (and (<= (+ main_~a~0 main_~b~0) main_~res~0) (< main_~res~0 (+ main_~a~0 main_~b~0 1))) [2018-11-07 05:07:18,792 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 24) no Hoare annotation was computed. [2018-11-07 05:07:18,792 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-07 05:07:18,792 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-07 05:07:18,792 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-07 05:07:18,793 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-07 05:07:18,793 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-07 05:07:18,793 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-07 05:07:18,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:07:18 BoogieIcfgContainer [2018-11-07 05:07:18,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 05:07:18,806 INFO L168 Benchmark]: Toolchain (without parser) took 3970.39 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 758.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -666.9 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. [2018-11-07 05:07:18,808 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 05:07:18,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.14 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-07 05:07:18,809 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.10 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 05:07:18,810 INFO L168 Benchmark]: Boogie Preprocessor took 21.93 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 05:07:18,811 INFO L168 Benchmark]: RCFGBuilder took 333.76 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 758.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -811.5 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2018-11-07 05:07:18,812 INFO L168 Benchmark]: TraceAbstraction took 3259.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 134.0 MB). Peak memory consumption was 134.0 MB. Max. memory is 7.1 GB. [2018-11-07 05:07:18,817 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 324.14 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 24.10 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.93 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 333.76 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 758.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -811.5 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3259.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 134.0 MB). Peak memory consumption was 134.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (a + b <= res + cnt && res < a + b + 1) && res + cnt <= a + b - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 8 SDslu, 74 SDs, 0 SdLazy, 52 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.7s 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, 0.3s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 38 HoareAnnotationTreeSize, 10 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 73 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 4555 SizeOfPredicates, 5 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...