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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default.epf -i ../../../trunk/examples/programs/toy/nonlinear/Power2-Unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 13:33:17,481 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 13:33:17,483 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 13:33:17,495 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 13:33:17,495 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 13:33:17,496 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 13:33:17,498 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 13:33:17,507 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 13:33:17,508 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 13:33:17,509 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 13:33:17,510 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 13:33:17,510 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 13:33:17,511 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 13:33:17,512 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 13:33:17,513 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 13:33:17,515 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 13:33:17,516 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 13:33:17,518 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 13:33:17,523 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 13:33:17,524 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 13:33:17,529 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 13:33:17,530 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 13:33:17,532 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 13:33:17,533 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 13:33:17,533 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 13:33:17,534 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 13:33:17,535 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 13:33:17,535 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 13:33:17,536 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 13:33:17,537 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 13:33:17,537 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 13:33:17,538 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 13:33:17,538 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 13:33:17,538 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 13:33:17,539 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 13:33:17,540 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 13:33:17,540 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-04 13:33:17,560 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 13:33:17,560 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 13:33:17,561 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 13:33:17,562 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 13:33:17,565 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 13:33:17,565 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 13:33:17,565 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 13:33:17,566 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 13:33:17,566 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 13:33:17,566 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 13:33:17,566 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 13:33:17,566 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 13:33:17,567 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 13:33:17,568 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 13:33:17,568 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 13:33:17,568 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 13:33:17,568 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 13:33:17,569 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 13:33:17,570 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 13:33:17,570 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 13:33:17,570 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 13:33:17,570 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 13:33:17,571 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 13:33:17,571 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 13:33:17,571 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 13:33:17,571 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 13:33:17,571 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 13:33:17,572 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 13:33:17,572 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 13:33:17,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 13:33:17,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 13:33:17,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 13:33:17,656 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 13:33:17,657 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 13:33:17,657 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power2-Unsafe.bpl [2018-10-04 13:33:17,658 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power2-Unsafe.bpl' [2018-10-04 13:33:17,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 13:33:17,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 13:33:17,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 13:33:17,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 13:33:17,703 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 13:33:17,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:33:17" (1/1) ... [2018-10-04 13:33:17,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:33:17" (1/1) ... [2018-10-04 13:33:17,740 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-04 13:33:17,741 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-04 13:33:17,741 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-04 13:33:17,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 13:33:17,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 13:33:17,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 13:33:17,744 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 13:33:17,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:33:17" (1/1) ... [2018-10-04 13:33:17,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:33:17" (1/1) ... [2018-10-04 13:33:17,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:33:17" (1/1) ... [2018-10-04 13:33:17,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:33:17" (1/1) ... [2018-10-04 13:33:17,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:33:17" (1/1) ... [2018-10-04 13:33:17,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:33:17" (1/1) ... [2018-10-04 13:33:17,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:33:17" (1/1) ... [2018-10-04 13:33:17,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 13:33:17,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 13:33:17,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 13:33:17,767 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 13:33:17,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:33:17" (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:10000 (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:10000 [2018-10-04 13:33:17,832 INFO L124 BoogieDeclarations]: Specification and implementation of procedure power given in one single declaration [2018-10-04 13:33:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure power [2018-10-04 13:33:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure power [2018-10-04 13:33:17,899 WARN L632 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-10-04 13:33:18,067 INFO L338 CfgBuilder]: Using library mode [2018-10-04 13:33:18,067 INFO L202 PluginConnector]: Adding new model Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:33:18 BoogieIcfgContainer [2018-10-04 13:33:18,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 13:33:18,068 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 13:33:18,069 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 13:33:18,081 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 13:33:18,081 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:33:18" (1/1) ... [2018-10-04 13:33:18,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 13:33:18,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:33:18,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-10-04 13:33:18,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-10-04 13:33:18,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 13:33:18,142 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:33:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:33:18,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 13:33:18,463 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-04 13:33:18,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:33:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:33:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 10 transitions. [2018-10-04 13:33:18,743 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2018-10-04 13:33:18,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 13:33:18,743 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:33:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:33:18,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 13:33:18,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:33:19,448 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-10-04 13:33:20,066 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2018-10-04 13:33:20,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:33:20,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-10-04 13:33:20,399 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-10-04 13:33:20,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 13:33:20,404 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:33:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-04 13:33:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-04 13:33:20,448 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2018-10-04 13:33:20,477 WARN L390 cessorBacktranslator]: Generated EnsuresSpecification ensures res >= a * b; is not ensure(true) [2018-10-04 13:33:20,492 INFO L202 PluginConnector]: Adding new model Power2-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 04.10 01:33:20 ImpRootNode [2018-10-04 13:33:20,493 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-04 13:33:20,501 INFO L168 Benchmark]: Toolchain (without parser) took 2799.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 95.2 MB). Peak memory consumption was 95.2 MB. Max. memory is 7.1 GB. [2018-10-04 13:33:20,506 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 13:33:20,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.87 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 13:33:20,508 INFO L168 Benchmark]: Boogie Preprocessor took 22.81 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 13:33:20,509 INFO L168 Benchmark]: RCFGBuilder took 300.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 13:33:20,514 INFO L168 Benchmark]: CodeCheck took 2431.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.1 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. [2018-10-04 13:33:20,525 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 6 locations, 1 error locations. UNSAFE Result, 2.3s OverallTime, 3 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 68 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 136 SizeOfPredicates, 2 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 9]: procedure postcondition can be violated procedure postcondition can be violated We found a FailurePath: [L9-L10] requires a >= 1 && b >= 0; [L15] res := 1; [L16] tmp := b; VAL [a=1, b=2, res=1, tmp=2] [L18] COND TRUE tmp > 0 [L20] res := res * a; [L21] tmp := tmp - 1; VAL [a=1, b=2, res=1, tmp=1] [L18] COND TRUE tmp > 0 [L20] res := res * a; [L21] tmp := tmp - 1; VAL [a=1, b=2, res=1, tmp=0] [L18] COND FALSE !(tmp > 0) VAL [a=1, b=2, res=1, tmp=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.87 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.81 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 300.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * CodeCheck took 2431.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.1 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures res >= a * b; is not ensure(true) RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Power2-Unsafe.bpl_svcomp-Reach-32bit-Kojak_Default.epf_KojakBplInline.xml/Csv-CodeCheckBenchmarks-0-2018-10-04_13-33-20-551.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Power2-Unsafe.bpl_svcomp-Reach-32bit-Kojak_Default.epf_KojakBplInline.xml/Csv-Benchmark-0-2018-10-04_13-33-20-551.csv Received shutdown request...