java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loops/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:59:53,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:59:53,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:59:53,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:59:53,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:59:53,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:59:53,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:59:53,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:59:53,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:59:53,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:59:53,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:59:53,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:59:53,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:59:53,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:59:53,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:59:53,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:59:53,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:59:53,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:59:53,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:59:53,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:59:53,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:59:53,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:59:53,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:59:53,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:59:53,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:59:53,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:59:53,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:59:53,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:59:53,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:59:53,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:59:53,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:59:53,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:59:53,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:59:53,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:59:53,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:59:53,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:59:53,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:59:53,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:59:53,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:59:53,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:59:53,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:59:53,451 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:59:53,467 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:59:53,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:59:53,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:59:53,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:59:53,469 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:59:53,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:59:53,469 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:59:53,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:59:53,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:59:53,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:59:53,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:59:53,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:59:53,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:59:53,470 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:59:53,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:59:53,471 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:59:53,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:59:53,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:59:53,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:59:53,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:59:53,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:59:53,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:59:53,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:59:53,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:59:53,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:59:53,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:59:53,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:59:53,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:59:53,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:59:53,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:59:53,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:59:53,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:59:53,800 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:59:53,800 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:59:53,801 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2019-10-13 22:59:53,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31ad7e6d/d0c01b4995cf43c883e857db7d596f9b/FLAG0647e8423 [2019-10-13 22:59:54,361 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:59:54,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp.c [2019-10-13 22:59:54,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31ad7e6d/d0c01b4995cf43c883e857db7d596f9b/FLAG0647e8423 [2019-10-13 22:59:54,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31ad7e6d/d0c01b4995cf43c883e857db7d596f9b [2019-10-13 22:59:54,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:59:54,713 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:59:54,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:59:54,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:59:54,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:59:54,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:54" (1/1) ... [2019-10-13 22:59:54,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:54, skipping insertion in model container [2019-10-13 22:59:54,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:54" (1/1) ... [2019-10-13 22:59:54,730 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:59:54,752 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:59:54,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:59:55,002 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:59:55,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:59:55,166 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:59:55,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:55 WrapperNode [2019-10-13 22:59:55,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:59:55,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:59:55,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:59:55,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:59:55,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:55" (1/1) ... [2019-10-13 22:59:55,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:55" (1/1) ... [2019-10-13 22:59:55,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:55" (1/1) ... [2019-10-13 22:59:55,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:55" (1/1) ... [2019-10-13 22:59:55,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:55" (1/1) ... [2019-10-13 22:59:55,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:55" (1/1) ... [2019-10-13 22:59:55,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:55" (1/1) ... [2019-10-13 22:59:55,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:59:55,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:59:55,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:59:55,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:59:55,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:59:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:59:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:59:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 22:59:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2019-10-13 22:59:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:59:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2019-10-13 22:59:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:59:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 22:59:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2019-10-13 22:59:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2019-10-13 22:59:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:59:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-13 22:59:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-13 22:59:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:59:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:59:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:59:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:59:55,940 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:59:55,941 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-10-13 22:59:55,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:55 BoogieIcfgContainer [2019-10-13 22:59:55,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:59:55,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:59:55,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:59:55,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:59:55,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:59:54" (1/3) ... [2019-10-13 22:59:55,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5316c0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:55, skipping insertion in model container [2019-10-13 22:59:55,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:55" (2/3) ... [2019-10-13 22:59:55,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5316c0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:55, skipping insertion in model container [2019-10-13 22:59:55,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:55" (3/3) ... [2019-10-13 22:59:55,952 INFO L109 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2019-10-13 22:59:55,963 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:59:55,973 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:59:55,986 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:59:56,014 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:59:56,014 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:59:56,014 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:59:56,014 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:59:56,015 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:59:56,015 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:59:56,015 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:59:56,016 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:59:56,036 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-10-13 22:59:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-13 22:59:56,043 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:56,044 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:56,046 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:56,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:56,052 INFO L82 PathProgramCache]: Analyzing trace with hash 133090448, now seen corresponding path program 1 times [2019-10-13 22:59:56,062 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:56,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964135172] [2019-10-13 22:59:56,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:56,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:56,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:56,298 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964135172] [2019-10-13 22:59:56,301 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:59:56,302 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 22:59:56,302 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924415573] [2019-10-13 22:59:56,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:59:56,311 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:56,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:59:56,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 22:59:56,330 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 6 states. [2019-10-13 22:59:56,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:56,445 INFO L93 Difference]: Finished difference Result 75 states and 106 transitions. [2019-10-13 22:59:56,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:59:56,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-10-13 22:59:56,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:56,454 INFO L225 Difference]: With dead ends: 75 [2019-10-13 22:59:56,454 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 22:59:56,461 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:59:56,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 22:59:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 22:59:56,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 22:59:56,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 22:59:56,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-10-13 22:59:56,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:56,484 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 22:59:56,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 22:59:56,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 22:59:56,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 22:59:56,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 22:59:56,576 INFO L446 ceAbstractionStarter]: At program point L118(line 118) the Hoare annotation is: true [2019-10-13 22:59:56,577 INFO L443 ceAbstractionStarter]: For program point L118-1(line 118) no Hoare annotation was computed. [2019-10-13 22:59:56,577 INFO L446 ceAbstractionStarter]: At program point L127-3(lines 127 133) the Hoare annotation is: true [2019-10-13 22:59:56,577 INFO L446 ceAbstractionStarter]: At program point L119-3(lines 119 126) the Hoare annotation is: true [2019-10-13 22:59:56,577 INFO L446 ceAbstractionStarter]: At program point L144-3(lines 144 150) the Hoare annotation is: true [2019-10-13 22:59:56,578 INFO L446 ceAbstractionStarter]: At program point L136-3(lines 136 142) the Hoare annotation is: true [2019-10-13 22:59:56,578 INFO L443 ceAbstractionStarter]: For program point ludcmpEXIT(lines 109 153) no Hoare annotation was computed. [2019-10-13 22:59:56,578 INFO L446 ceAbstractionStarter]: At program point ludcmpENTRY(lines 109 153) the Hoare annotation is: true [2019-10-13 22:59:56,578 INFO L443 ceAbstractionStarter]: For program point ludcmpFINAL(lines 109 153) no Hoare annotation was computed. [2019-10-13 22:59:56,578 INFO L446 ceAbstractionStarter]: At program point L130-3(lines 130 131) the Hoare annotation is: true [2019-10-13 22:59:56,579 INFO L443 ceAbstractionStarter]: For program point L122(lines 122 124) no Hoare annotation was computed. [2019-10-13 22:59:56,579 INFO L443 ceAbstractionStarter]: For program point L122-1(lines 122 124) no Hoare annotation was computed. [2019-10-13 22:59:56,579 INFO L446 ceAbstractionStarter]: At program point L147-3(lines 147 148) the Hoare annotation is: true [2019-10-13 22:59:56,579 INFO L446 ceAbstractionStarter]: At program point L139-3(lines 139 140) the Hoare annotation is: true [2019-10-13 22:59:56,579 INFO L446 ceAbstractionStarter]: At program point L123-3(lines 123 124) the Hoare annotation is: true [2019-10-13 22:59:56,580 INFO L443 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2019-10-13 22:59:56,580 INFO L446 ceAbstractionStarter]: At program point L116-3(lines 116 134) the Hoare annotation is: true [2019-10-13 22:59:56,580 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 22:59:56,580 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:59:56,580 INFO L443 ceAbstractionStarter]: For program point fabsEXIT(lines 74 81) no Hoare annotation was computed. [2019-10-13 22:59:56,581 INFO L446 ceAbstractionStarter]: At program point fabsENTRY(lines 74 81) the Hoare annotation is: true [2019-10-13 22:59:56,581 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:59:56,581 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 22:59:56,581 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 22:59:56,581 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 22:59:56,582 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 83 107) no Hoare annotation was computed. [2019-10-13 22:59:56,582 INFO L439 ceAbstractionStarter]: At program point L91-3(lines 91 102) the Hoare annotation is: (<= main_~n~0 5) [2019-10-13 22:59:56,582 INFO L439 ceAbstractionStarter]: At program point L91-4(lines 91 102) the Hoare annotation is: (<= main_~n~0 5) [2019-10-13 22:59:56,582 INFO L443 ceAbstractionStarter]: For program point L104(line 104) no Hoare annotation was computed. [2019-10-13 22:59:56,582 INFO L443 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2019-10-13 22:59:56,582 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 83 107) the Hoare annotation is: true [2019-10-13 22:59:56,583 INFO L439 ceAbstractionStarter]: At program point L94-3(lines 94 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= main_~i~0 5)) [2019-10-13 22:59:56,583 INFO L439 ceAbstractionStarter]: At program point L94-4(lines 94 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= main_~i~0 5)) [2019-10-13 22:59:56,583 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-13 22:59:56,583 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-13 22:59:56,584 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-13 22:59:56,584 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-13 22:59:56,584 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-13 22:59:56,584 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-13 22:59:56,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:59:56 BoogieIcfgContainer [2019-10-13 22:59:56,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 22:59:56,602 INFO L168 Benchmark]: Toolchain (without parser) took 1887.74 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 90.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 73.3 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:56,603 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 135.8 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 22:59:56,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.85 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 176.6 MB in the end (delta: -76.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:56,605 INFO L168 Benchmark]: Boogie Preprocessor took 58.49 ms. Allocated memory is still 199.8 MB. Free memory was 176.6 MB in the beginning and 173.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:56,606 INFO L168 Benchmark]: RCFGBuilder took 717.24 ms. Allocated memory is still 199.8 MB. Free memory was 173.8 MB in the beginning and 129.0 MB in the end (delta: 44.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:56,607 INFO L168 Benchmark]: TraceAbstraction took 655.54 ms. Allocated memory is still 199.8 MB. Free memory was 129.0 MB in the beginning and 90.9 MB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:56,611 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25 ms. Allocated memory is still 135.8 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 451.85 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 176.6 MB in the end (delta: -76.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.49 ms. Allocated memory is still 199.8 MB. Free memory was 176.6 MB in the beginning and 173.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 717.24 ms. Allocated memory is still 199.8 MB. Free memory was 173.8 MB in the beginning and 129.0 MB in the end (delta: 44.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 655.54 ms. Allocated memory is still 199.8 MB. Free memory was 129.0 MB in the beginning and 90.9 MB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 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: 116]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: n <= 5 && i <= 5 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: n <= 5 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 39 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 16 SDslu, 163 SDs, 0 SdLazy, 26 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 45 PreInvPairs, 51 NumberOfFragments, 37 HoareAnnotationTreeSize, 45 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...