/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench/bresenham.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:28:51,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:28:51,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:28:51,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:28:51,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:28:51,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:28:51,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:28:51,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:28:51,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:28:51,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:28:51,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:28:51,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:28:51,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:28:51,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:28:51,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:28:51,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:28:51,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:28:51,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:28:51,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:28:51,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:28:51,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:28:51,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:28:51,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:28:51,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:28:51,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:28:51,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:28:51,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:28:51,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:28:51,376 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 04:28:51,400 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:28:51,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:28:51,402 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:28:51,402 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:28:51,403 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:28:51,403 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:28:51,403 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:28:51,403 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:28:51,405 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:28:51,405 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:28:51,405 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:28:51,405 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:28:51,406 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:28:51,406 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:28:51,406 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:28:51,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:28:51,408 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:28:51,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:28:51,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:28:51,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:28:51,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:28:51,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:28:51,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:28:51,410 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:28:51,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:28:51,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:28:51,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:28:51,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:28:51,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:28:51,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:28:51,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:28:51,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:28:51,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:28:51,412 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:28:51,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:28:51,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:28:51,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:28:51,412 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:28:51,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:28:51,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:28:51,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:28:51,722 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:28:51,723 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:28:51,723 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/bresenham.c [2019-11-24 04:28:51,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7163e56c0/abe92919ba4e41d997a9e7e736b10cce/FLAG5f87749bd [2019-11-24 04:28:52,227 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:28:52,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/bresenham.c [2019-11-24 04:28:52,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7163e56c0/abe92919ba4e41d997a9e7e736b10cce/FLAG5f87749bd [2019-11-24 04:28:52,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7163e56c0/abe92919ba4e41d997a9e7e736b10cce [2019-11-24 04:28:52,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:28:52,646 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:28:52,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:28:52,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:28:52,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:28:52,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:28:52" (1/1) ... [2019-11-24 04:28:52,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2e6b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52, skipping insertion in model container [2019-11-24 04:28:52,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:28:52" (1/1) ... [2019-11-24 04:28:52,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:28:52,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:28:52,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:28:52,852 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:28:52,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:28:52,887 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:28:52,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52 WrapperNode [2019-11-24 04:28:52,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:28:52,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:28:52,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:28:52,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:28:52,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52" (1/1) ... [2019-11-24 04:28:52,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52" (1/1) ... [2019-11-24 04:28:53,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:28:53,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:28:53,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:28:53,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:28:53,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52" (1/1) ... [2019-11-24 04:28:53,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52" (1/1) ... [2019-11-24 04:28:53,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52" (1/1) ... [2019-11-24 04:28:53,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52" (1/1) ... [2019-11-24 04:28:53,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52" (1/1) ... [2019-11-24 04:28:53,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52" (1/1) ... [2019-11-24 04:28:53,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52" (1/1) ... [2019-11-24 04:28:53,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:28:53,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:28:53,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:28:53,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:28:53,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52" (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 [2019-11-24 04:28:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:28:53,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:28:53,370 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:28:53,370 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-24 04:28:53,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:28:53 BoogieIcfgContainer [2019-11-24 04:28:53,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:28:53,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:28:53,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:28:53,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:28:53,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:28:52" (1/3) ... [2019-11-24 04:28:53,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129da6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:28:53, skipping insertion in model container [2019-11-24 04:28:53,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:28:52" (2/3) ... [2019-11-24 04:28:53,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129da6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:28:53, skipping insertion in model container [2019-11-24 04:28:53,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:28:53" (3/3) ... [2019-11-24 04:28:53,389 INFO L109 eAbstractionObserver]: Analyzing ICFG bresenham.c [2019-11-24 04:28:53,401 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:28:53,409 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-24 04:28:53,435 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-24 04:28:53,464 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:28:53,464 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:28:53,464 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:28:53,464 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:28:53,464 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:28:53,464 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:28:53,464 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:28:53,464 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:28:53,478 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-24 04:28:53,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-24 04:28:53,482 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:28:53,483 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-24 04:28:53,484 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:28:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:28:53,489 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-24 04:28:53,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:28:53,496 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628151039] [2019-11-24 04:28:53,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:28:53,573 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-24 04:28:53,573 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [182613707] [2019-11-24 04:28:53,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:28:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:53,610 WARN L253 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-24 04:28:53,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:28:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:28:53,680 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:28:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:28:53,748 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628151039] [2019-11-24 04:28:53,748 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-24 04:28:53,749 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182613707] [2019-11-24 04:28:53,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:28:53,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-24 04:28:53,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868703465] [2019-11-24 04:28:53,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-24 04:28:53,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:28:53,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-24 04:28:53,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-24 04:28:53,782 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2019-11-24 04:28:53,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:28:53,959 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2019-11-24 04:28:53,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-24 04:28:53,963 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-11-24 04:28:53,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:28:53,976 INFO L225 Difference]: With dead ends: 28 [2019-11-24 04:28:53,977 INFO L226 Difference]: Without dead ends: 11 [2019-11-24 04:28:53,982 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-11-24 04:28:54,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-24 04:28:54,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-24 04:28:54,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-24 04:28:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-24 04:28:54,028 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4 [2019-11-24 04:28:54,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:28:54,029 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-11-24 04:28:54,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-24 04:28:54,029 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-24 04:28:54,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-24 04:28:54,030 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:28:54,030 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-24 04:28:54,233 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:28:54,234 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:28:54,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:28:54,235 INFO L82 PathProgramCache]: Analyzing trace with hash 289372774, now seen corresponding path program 1 times [2019-11-24 04:28:54,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:28:54,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92934185] [2019-11-24 04:28:54,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:28:54,242 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-24 04:28:54,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1921449656] [2019-11-24 04:28:54,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:28:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:28:54,287 WARN L253 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-24 04:28:54,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:28:54,551 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 30 [2019-11-24 04:28:54,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:28:54,642 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:28:54,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:28:54,672 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:28:54,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:28:57,615 WARN L192 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-11-24 04:28:57,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:28:57,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:28:57,639 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92934185] [2019-11-24 04:28:57,639 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-24 04:28:57,639 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921449656] [2019-11-24 04:28:57,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-24 04:28:57,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2019-11-24 04:28:57,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79835457] [2019-11-24 04:28:57,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-24 04:28:57,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:28:57,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-24 04:28:57,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=101, Unknown=1, NotChecked=0, Total=156 [2019-11-24 04:28:57,647 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2019-11-24 04:29:01,840 WARN L192 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 28 [2019-11-24 04:29:01,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:29:01,899 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-11-24 04:29:01,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-24 04:29:01,899 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-11-24 04:29:01,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:29:01,900 INFO L225 Difference]: With dead ends: 11 [2019-11-24 04:29:01,900 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 04:29:01,901 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=92, Invalid=179, Unknown=1, NotChecked=0, Total=272 [2019-11-24 04:29:01,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 04:29:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 04:29:01,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 04:29:01,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 04:29:01,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-24 04:29:01,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:29:01,905 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 04:29:01,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-24 04:29:01,905 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 04:29:01,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 04:29:02,109 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:29:02,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 04:29:02,514 WARN L192 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2019-11-24 04:29:02,957 WARN L192 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2019-11-24 04:29:02,976 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 04:29:02,976 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2019-11-24 04:29:02,977 INFO L440 ceAbstractionStarter]: At program point L25-2(lines 25 38) the Hoare annotation is: (let ((.cse1 (* ULTIMATE.start_main_~Y~0 2))) (or (let ((.cse0 (* .cse1 ULTIMATE.start_main_~x~0))) (and (or (= (+ (* (* ULTIMATE.start_main_~x~0 2) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~X~0) (+ .cse0 (* ULTIMATE.start_main_~y~0 2) .cse1)) (<= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~X~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ ULTIMATE.start_main_~v~0 (* (* ULTIMATE.start_main_~X~0 2) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~X~0) (+ .cse0 .cse1)))) (and (= ULTIMATE.start_main_~x~0 0) (= (+ ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~X~0) .cse1) (= ULTIMATE.start_main_~y~0 0)))) [2019-11-24 04:29:02,977 INFO L444 ceAbstractionStarter]: For program point L25-3(lines 25 38) no Hoare annotation was computed. [2019-11-24 04:29:02,977 INFO L444 ceAbstractionStarter]: For program point L9(lines 9 12) no Hoare annotation was computed. [2019-11-24 04:29:02,977 INFO L440 ceAbstractionStarter]: At program point L9-2(lines 27 28) the Hoare annotation is: (let ((.cse1 (* ULTIMATE.start_main_~Y~0 2))) (let ((.cse0 (* .cse1 ULTIMATE.start_main_~x~0))) (and (or (= (+ (* (* ULTIMATE.start_main_~x~0 2) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~X~0) (+ .cse0 (* ULTIMATE.start_main_~y~0 2) .cse1)) (<= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~X~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ ULTIMATE.start_main_~v~0 (* (* ULTIMATE.start_main_~X~0 2) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~X~0) (+ .cse0 .cse1))))) [2019-11-24 04:29:02,978 INFO L444 ceAbstractionStarter]: For program point L9-3(lines 9 12) no Hoare annotation was computed. [2019-11-24 04:29:02,978 INFO L440 ceAbstractionStarter]: At program point L9-5(lines 8 14) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= (+ ULTIMATE.start_main_~v~0 (* (* ULTIMATE.start_main_~X~0 2) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~X~0) (let ((.cse0 (* ULTIMATE.start_main_~Y~0 2))) (+ (* .cse0 ULTIMATE.start_main_~x~0) .cse0)))) [2019-11-24 04:29:02,978 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 04:29:02,978 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2019-11-24 04:29:02,978 INFO L444 ceAbstractionStarter]: For program point L10(lines 10 11) no Hoare annotation was computed. [2019-11-24 04:29:02,979 INFO L444 ceAbstractionStarter]: For program point L10-1(lines 10 11) no Hoare annotation was computed. [2019-11-24 04:29:02,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:29:02 BoogieIcfgContainer [2019-11-24 04:29:02,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:29:03,000 INFO L168 Benchmark]: Toolchain (without parser) took 10354.13 ms. Allocated memory was 136.3 MB in the beginning and 230.2 MB in the end (delta: 93.8 MB). Free memory was 100.8 MB in the beginning and 163.6 MB in the end (delta: -62.8 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2019-11-24 04:29:03,001 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-24 04:29:03,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.77 ms. Allocated memory is still 136.3 MB. Free memory was 100.6 MB in the beginning and 90.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-11-24 04:29:03,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.71 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 90.8 MB in the beginning and 180.4 MB in the end (delta: -89.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2019-11-24 04:29:03,004 INFO L168 Benchmark]: Boogie Preprocessor took 19.18 ms. Allocated memory is still 201.3 MB. Free memory was 180.4 MB in the beginning and 178.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-11-24 04:29:03,005 INFO L168 Benchmark]: RCFGBuilder took 340.75 ms. Allocated memory is still 201.3 MB. Free memory was 178.6 MB in the beginning and 163.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-11-24 04:29:03,006 INFO L168 Benchmark]: TraceAbstraction took 9624.25 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 163.1 MB in the beginning and 163.6 MB in the end (delta: -466.8 kB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:29:03,011 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 241.77 ms. Allocated memory is still 136.3 MB. Free memory was 100.6 MB in the beginning and 90.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 122.71 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 90.8 MB in the beginning and 180.4 MB in the end (delta: -89.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 19.18 ms. Allocated memory is still 201.3 MB. Free memory was 180.4 MB in the beginning and 178.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 340.75 ms. Allocated memory is still 201.3 MB. Free memory was 178.6 MB in the beginning and 163.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9624.25 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 163.1 MB in the beginning and 163.6 MB in the end (delta: -466.8 kB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 11]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((x * 2 * y + v + X == Y * 2 * x + y * 2 + Y * 2 || x <= X) && 1 == cond) && v + X * 2 * y + X == Y * 2 * x + Y * 2 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((x * 2 * y + v + X == Y * 2 * x + y * 2 + Y * 2 || x <= X) && 1 == cond) && v + X * 2 * y + X == Y * 2 * x + Y * 2) || ((x == 0 && v + X == Y * 2) && y == 0) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: !(0 == cond) && v + X * 2 * y + X == Y * 2 * x + Y * 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Result: SAFE, OverallTime: 9.5s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, HoareTripleCheckerStatistics: 6 SDtfs, 33 SDslu, 8 SDs, 0 SdLazy, 26 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 132 HoareAnnotationTreeSize, 3 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 90 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 3336 SizeOfPredicates, 19 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...